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MITSUBISHI Cylinder unit EHPT20X-MHEDW User Manual

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Safety Notices .................................................................................. 2. 2. Introduction .

Cylinder unit

Installation manual

Packaged Cylinder for Ecodan Monobloc - Easy Heat Pumps

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Cylinder unit
EHPT20X-MHEDW
INSTALLATION MANUAL

FOR INSTALLER

English

Contents

For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing the cylinder unit. English is the original language. The other language versions are translations of the original.

1. Safety Notices.................................................................................. 2 2. Introduction...................................................................................... 3 3. Technical Information ..................................................................... 4 4. Installation........................................................................................ 8
4.1 Location ....................................................................................... 8 4.2 Water Quality and System Preparation ........................................... 9 4.3 Water Pipe Work.......................................................................... 9 4.4 Safety Device Discharge Arrangements (G3)......................... 13 4.5 Electrical Connection ............................................................... 14 5. System Set Up ............................................................................... 16 5.1 DIP Switch Functions ............................................................... 16 5.2 Connecting inputs/outputs ...................................................... 17 5.3 Wiring for 2-zone temperature control ................................... 18 5.4 Indoor unit only operation (during installation work) ........... 19 5.5 Smart grid ready ....................................................................... 19 5.6 Using SD memory card ............................................................ 19 5.7 Main remote controller ............................................................. 20 en 6. Commissioning.............................................................................. 26 7. Service and Maintenance.............................................................. 27

http://www.mitsubishielectric.com/ldg/ibim/
If you want more information that is not written in this manual, go to the above website to download manuals, select model name, then choose language.
Contents of website manual � Energy monitor � Component parts (detail) � Water circuit diagram (170 L) � Room thermostat � Filling the system � Simple 2 zone system � Independent electrical power source � Smart grid ready � Remote controller options � Service menu (special setting) � Supplementary information

Accessories (Included) Adjustable feet

Immersion heater boss tool EHPT20X-MHEDW model only

SD memory card

Copper liner for DHW pipe

Abbreviations and glossary
No. Abbreviations/Word
1 Compensation curve mode 2 COP 3 Cylinder unit 4 DHW mode 5 Flow temperature 6 Freeze stat. function 7 FTC 8 Heating mode 9 Legionella 10 LP mode 11 Packaged model 12 PRV 13 Return temperature 14 Split model 15 TRV 16 Cooling mode

Description
Space heating incorporating outdoor ambient temperature compensation Coefficient of Performance the efficiency of the heat pump Indoor unvented DHW tank and component plumbing parts Domestic hot water heating mode for showers, sinks, etc Temperature at which water is delivered to the primary circuit Heating control routine to prevent water pipes freezing Flow temperature controller, the circuit board in charge of controlling the system Space heating through radiators or Underfloor heating Bacteria potentially found in plumbing, showers and water tanks that may cause Legionnaires disease Legionella prevention mode � a function on systems with water tanks to prevent the growth of legionella bacteria Plate heat exchanger (Refrigerant - Water) in the outdoor heat pump unit Pressure relief valve Temperature at which water is delivered from the primary circuit Plate heat exchanger (Refrigerant - Water) in the indoor unit Thermostatic radiator valve � a valve on the entrance or exit of the radiator panel to control the heat output Space cooling through fan-coils or underfloor cooling

1 Safety Notices

Please read the following safety precautions carefully.

WARNING: Precautions that must be observed to prevent injuries or death.

CAUTION: Precautions that must be observed to prevent damage to unit.

This installation manual along with the user manual should be left with the product after installation for future reference. Mitsubishi Electric is not responsible for the failure of locally-supplied parts.

� Be sure to perform periodical maintenance. � Be sure to follow your local regulations. � Be sure to follow the instructions provided in this manual.

MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT

WARNING
(Risk of fire)

This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
In case that refrigerant type is R32, this unit uses a flammable refrigerant. If refrigerant leaks and comes in contact with fire or heating part, it will create harmful gas and there is risk of fire.

Read the OPERATION MANUAL carefully before operation.

Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.

Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the likes.

WARNING
Mechanical
The cylinder unit and outdoor unit must not be installed, disassembled, relocated, altered or repaired by the user. Ask an authorised installer or technician. If the unit is installed improperly or modified after installation, water leakage, electric shock or fire may result. The outdoor unit should be securely fixed to a hard level surface capable of bearing its weight. The cylinder unit should be positioned on a hard level surface capable of supporting its filled weight to prevent excessive sound or vibration. Do not position furniture or electrical appliances below the outdoor unit or cylinder unit. The discharge pipework from the emergency devices of the cylinder unit should be installed according to local law. Only use accessories and replacement parts authorised by Mitsubishi Electric ask a qualified technician to fit the parts.
Electrical
All electrical work should be performed by a qualified technician according to local regulations and the instructions given in this manual. The units must be powered by a dedicated power supply and the correct voltage and circuit breakers must be used. Wiring should be in accordance with national wiring regulations. Connections must be made securely and without tension on the terminals. Earth unit correctly.
General
Keep children and pets away from both the cylinder unit and outdoor unit. Do not use the hot water produced by the heat pump directly for drinking or cooking. This could cause illness to the user. Do not stand on the units. Do not touch switches with wet hands. Annual maintenance checks on both the cylinder unit and the outdoor unit should be conducted by a qualified person. Do not place containers with liquids on top of the cylinder unit. If they leak or spill onto the cylinder unit damage to the unit and/or fire could occur. Do not place any heavy items on top of the cylinder unit. When installing, relocating, or servicing the cylinder unit, use only the heat pump's specified refrigerant to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refrigerant line, and may result in an explosion and other hazards. The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst case, this could lead to a serious impediment to securing product safety. In heating mode, to avoid the heat emitters being damaged by excessively hot water, set the target flow temperature to a minimum of 2�C below the maximum allowable temperature of all the heat emitters. For Zone2, set the target flow temperature to a minimum of 5�C below the maximum allowable flow temperature of all the heat emitters in Zone2 circuit. Do not install the unit where combustible gases may leak, be produced, flow, or accumulate. If combustible gas accumulates around the unit, fire or explosion may result. Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater). Do not pierce or burn. Be aware that refrigerants may not contain an odour. Pipe-work shall be protected from physical damage. The installation of pipe-work shall be kept to a minimum. Compliance with national gas regulations shall be observed. Keep any required ventilation openings clear of obstruction. Do not use low temperature solder alloy in case of brazing the refrigerant pipes.

1 Safety Notices

CAUTION
Use clean water that meets local quality standards on the primary circuit. The outdoor unit should be installed in an area with sufficient airflow according to the diagrams in the outdoor unit installation manual. The cylinder unit should be located inside to minimise heat loss. Water pipe-runs on the primary circuit between outdoor and indoor unit should be kept to a minimum to reduce heat loss. Ensure condensate from outdoor unit is piped away from the base to avoid puddles of water. Remove as much air as possible from the primary and DHW circuits. Refrigerant leakage may cause suffocation. Provide ventilation in accordance with EN378-1. Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite. Never put batteries in your mouth for any reason to avoid accidental ingestion. Battery ingestion may cause choking and/or poisoning. Do not transport the cylinder unit with water inside the DHW tank. This could cause damage to the unit. If power to the cylinder unit is to be turned off (or system switched off) for a long time, the water should be drained. If unused for a long period, before operation is resumed, DHW tank should be flushed through with potable water. Preventative measures should be taken against water hammer, such as installing a Water Hammer Arrestor on the primary water circuit, as directed by the manufacturer. As for the handling of refrigerant, refer to the outdoor unit installation manual.

en
2 Introduction

The purpose of this installation manual is to instruct competent persons how to safely and efficiently install and commission the cylinder unit system. The target readers of this manual are competent plumbers and/or refrigeration engineers

who have attended and passed the requisite Mitsubishi Electric product training and have appropriate qualifications for installation of an unvented hot water cylinder unit specific to their country.

3 Technical Information

Product specification

Model name

EHPT20X-MHEDW

Nominal domestic hot water volume

200 L

Overall unit dimensions (Height � Width � Depth)

1600 � 595 � 680 mm

Weight (empty)

94 kg

Weight (full)

300 kg

Water volume of heating circuit in the unit *1

3.7 L

Unvented expansion ves- Nominal volume

sel (Primary heating)

Charge pressure

Primary circuit

Control thermistor Pressure relief valve Flow sensor

80�C 0.3 MPa (3bar) Min. flow 5.0 L/min (See table 4.3.1 about water flow rate range)

Safety device

Booster heater

BH manual reset thermostat BH thermal Cut Off Control thermistor

-- -- 75�C

DHW tank Connections

IH manual reset thermostat

Temperature/ Pressure relief valve

Water

Primary circuit) DHW circuit

Refrigerant (R32/ R410A)

Liquid Gas

90�C / 0.7 MPa (7 bar)

�28 mm

�22 mm

Operating range

Heating Cooling

Room temperature Flow temperature Room temperature Flow temperature

10 - 30�C 20 - 60�C
-- --

Guaranteed operating range *2

Ambient
Outdoor temperature

Heating Cooling

0 - 35�C ( 80 %RH) See outdoor unit spec table.
--

Maximum allowable hot water temperature

70�C

Declared load profile

DHW tank performance

Average climate

Water heater energy efficiency class

A+

Time to reheat 70% of DHW tank to 65�C *4

24.8 min

Time to raise DHW tank temp. 15 - 65�C *4

29.5 min

Control board (Including 4 pumps)

Power supply (Phase, voltage, frequency)
Input
Current

~/N, 230 V, 50 Hz
0.30 kW 1.95 A

Breaker

10 A

Power supply (Phase, voltage, frequency)

Electrical data

Booster heater

Capacity

Current

Breaker

Immersion heater *3

Power supply (Phase, voltage, frequency)
Capacity
Current

~/N, 230 V, 50 Hz
3 kW 13 A

Breaker

16 A

Sound power level (PWL)

40 dB(A)

*1 Volume of sanitary water circuit, primary DHW circuit (from 3-way valve to confluent point with heating circuit), piping to expansion vessel, and expansion vessel are not included in this value.
*2 The environment must be frost-free. *3 Do not fit immersion heaters without thermal cut-out. Use only Mitsubishi Electric service parts as a direct replacement. *4 Tested under BS7206 conditions.

3 Technical Information
Technical Drawings <EHPT20X-MHEDW> (Packaged model system)

HANDLE

680

100�20

D
C 0 67.8
F 442.3 542.3
E

552.7 546.8 412.1 242.7 182.7 0

0
A B
515.7 J

226.7 181.7 136.7
91.7 46.7
0

AIR VENT 595
MANOMETER

TEMPERATURE &

PRESSURE

MAIN

RELIEF VALVE

CONTROLLER

TERMINAL BLOCK

CPF 15mm

1600 456 120�20

FRONT PANEL

<Unit: mm>

Letter Pipe description

Connection size/type

A DHW outlet connection

22 mm/Compression

B Cold water inlet connection

22 mm/Compression

C Space heating/cooling RETURN connection

28 mm/Compression

D Space heating/cooling FLOW connection

28 mm/Compression

E Flow connection FROM heat pump (No plate heat exchanger) 28 mm/Compression

F Return connection TO heat pump (No plate heat exchanger) 28 mm/Compression

Refrigerant (GAS) (With plate heat exchanger)

Refrigerant (LIQUID) (With plate heat exchanger)

12.7 mm/Flare (E*ST**D-*) 15.88 mm/Flare (E*ST**C-*)
6.35 mm/Flare (E*ST**D-*) 9.52 mm/Flare (E*ST**C-*)

Warning
� Refrigerant pipes connection shall be accessible for maintenance purposes.
� In case of reconnecting the refrigerant pipes after detaching, make the flared part of pipe re-fabricated.

Electrical cable inlets

12345

For inlets , and , run low-voltage wires including external input wires and thermistor wires. For inlets and , run high-voltage wires including power cable, indoor-outdoor cable, and external output wires. *For a wireless receiver (option) cable and ecodan Wi-Fi interface (option) cable, use inlet .

3 Technical Information

Component Parts

No.

Part name

<EHPT20X-MHEDW> (Packaged model system)

A DHW outlet pipe B Cold water inlet pipe C Water pipe (Space heating/cooling return connection)

D Water pipe (Space heating/cooling flow connection)

E Water pipe (Flow from heat pump connection)

C D BA

F Water pipe (Return to heat pump connection) G Refrigerant pipe (Gas)

H Refrigerant pipe (Liquid)

1 Control and electrical box

2 Main remote controller

3 Plate heat exchanger (Refrigerant - Water)

4 Booster heater 1,2

5 3-way valve

6 Drain cock (Primary circuit)

7 Manometer

8 Pressure relief valve (3bar)

9 Automatic air vent

10 Expansion vessel (Primary circuit) (Local supply)

11 Flow sensor

20 12 Strainer valve

13 Water circulation pump 1 (Primary circuit)

14 Pump valve

15 DHW tank

16 Plate heat exchanger (Water - Water)

17 Scale trap

18 Water circulation pump (Sanitary circuit)

19 Immersion heater

20 Temperature and pressure relief valve

21 Pressure relief valve (10bar) (DHW Tank)

22 Drain cock (DHW tank)

23 Drain cock (Sanitary circuit)

24 Flow water temp. thermistor (THW1)

25 Return water temp. thermistor (THW2)

26 DHW tank upper water temp. thermistor (THW5A)

27 DHW tank lower water temp. thermistor (THW5B)

28 Refrigerant liquid temp. thermistor (TH2)

29 Pressure sensor

30 Drain pan

31 Outdoor unit

32 Drain pipe (Local supply)

33 Back flow prevention device (Local supply)

34 Isolating valve (Local supply)

35 Magnetic filter (Local supply) (Recommended) 36 Strainer (Local supply)

Note: For installation of all EHPT20X-MHEDW models, make sure to install a suitably sized primary-side expansion vessel. (See figure 3.2 and 4.3.2 for further guidance)

37 Pressure relief valve (Outdoor unit) 38 Inlet control group *1 39 Filling loop (Ball valves, check valves and flexible hose) *1 40 Potable expansion vessel *1

41 Air vent (Local supply)

Water circuit diagram

*1 Supplied with UK model ONLY. Please refer to PACWK02UK-E Installation Manual for more information on accessories.
<Table 3.3>

<EHPT20X-MHEDW> (UK model system) <Example>

Note: Do not attach an additional pressure relief valve to the heating (cooling) circuit on E*PT**X model to keep fire safety.

Cold water

36 9

A 32

Drain

7
Pa
32
Drain

20
18
17 16

15 26 27
19

23 6

24 31 37 3 34 41*b

36 34

6 6

14 13 12

25 11

Cylinder unit
<Figure 3.2>

DHW

Water pipe

34 Local system *a
35 34
Drain
Flexible hose (Temporary connection)
39 Mains water supply

*a Refer to the following section `Local system' on the `Paper-based manual'.
*b If the outdoor unit is higher than the indoor unit, or if there is a location where air gets trapped in the upper part of the water pipe, consider adding this part.
Note (Figure 3.2) � To enable draining of the cylinder unit an isolat-
ing valve should be positioned on both the inlet and outlet pipework. No valve should be fitted between the expansion valve (item 38) and the cylinder unit (safety matter). � For space heating (primary) circuit a suitable expansion vessel MUST be supplied and fitted by installer. (See figure 4.3.2) � Be sure to install a strainer on the inlet pipework to the cylinder unit. � Suitable drain pipework should be attached to the relief valves instructed to be connected to it in Figure 3.2 in accordance with your country's regulations. � When using components made from different metals or connecting pipes made of different metals insulate the joints to prevent any corrosive reaction taking place which may damage any pipework. � Filling loop's flexible hose must be removed following the filling procedure. Item provided with unit as loose accessory. � Install the inlet control group (item 38) above the level of the T&P relief valve (item 20). This will ensure DHW tank will not require drain down to service/maintain the inlet control group.
6

3 Technical Information
Local system 1-zone temperature control
Zone1
1

3 5
4 2

Zone1 1

en 2-zone temperature control

Zone1 3

Zone2

8 10

2-zone temperature control & Buffer tank control

1-zone temperature control with boiler
11

13 3
5
4 2

Zone1 1

1-zone temperature control (2-zone valve ON/OFF control)

12 *1
2

Zone1
1 Zone2
10

Zone1 14
16 1
Zone2 15
10

1. Zone1 heat emitters (e.g. radiator, fan coil unit) (local supply)
2. Mixing tank (local supply)
3. Zone1 flow water temp. thermistor (THW6) Optional part : PAC-TH011-E
4. Zone1 return water temp. thermistor (THW7)
5. Zone1 water circulation pump (local supply)
6. Motorized mixing valve (local supply)
7. Zone2 flow water temp. thermistor (THW8) Optional part : PAC-TH011-E
8. Zone2 return water temp. thermistor (THW9)
9. Zone2 water circulation pump (local supply)

10. Zone2 heat emitters (e.g. underfloor heating) (local supply) 11. Boiler flow water temp. thermistor (THWB1)
Optional part : PAC-TH012HT(L)-E 12. Mixing tank thermistor (THW10) *1 13. Boiler (local supply) 14. Zone1 2-way valve (local supply) 15. Zone2 2-way valve (local supply) 16. Bypass valve (local supply)
*1 ONLY Buffer tank control (heating/cooling) applies to "Smart grid ready".

4 Installation
<Preparation before the installation and service>
Prepare the proper tools. Prepare the proper protection. Allow parts to cool before attempting any maintenance. Provide adequate ventilation. After stopping the operation of the system, turn off the power-supply breaker and remove the power plug. Discharge the capacitor before commencing work involving the electric parts.
<Precautions during service>
Do not perform work involving electric parts with wet hands. Do not pour water or liquid into the electric parts. Do not touch the refrigerant. Do not touch the hot or cold surfaces in the refrigerant cycle. When the repair or the inspection of the circuit needs to be carried out without turning off the power, exercise great caution NOT to touch any LIVE parts.

4.1 Location
Transportation and Handling

Front

Handle

Legs

<Figure 4.1.1>
Cylinder unit is delivered on a wooden pallet base with cardboard protection.

Care should be taken when transporting the cylinder unit that the casing is not damaged by impact. Do not remove the protective packaging until cylinder unit has reached its final location. This will help protect the structure and control panel.
� The cylinder unit can be transported either vertically or horizontally. If transported horizontally the panel marked `Front' must be facing UPWARDS <Figure 4.1.1>.
� The cylinder unit should ALWAYS be moved by a minimum of 3 people. � When carrying the cylinder unit use the handles provided. � Before using the handles, make sure they are securely attached. � Please remove front handle, fixing legs, wooden base and any other pack-
aging once the unit is in installation location. � Keep the handles for future transportation.
Suitable Location
Before installation the cylinder unit should be stored in a frost-free weatherproof location. Units must NOT be stacked.
� The cylinder unit should be installed indoors in a frost free weather proof location.
� Install the cylinder unit where it is not exposed to water/excessive moisture. � The cylinder unit should be positioned on a level surface capable of supporting
it's FILLED weight. (Adjustable feet (accessory parts) can be used to ensure unit is level) � When using the adjustable feet, ensure that the floor is strong enough. � Care should be taken that minimum distances around and in front of the unit for service access are observed <Figure 4.1.2>. � Secure the cylinder unit to prevent it being knocked over.

Service access diagrams

Service access

Parameter a b c (distance behind unit not visible
in Figure 4.1.2) d

Dimension (mm) 300* 150
10
500

Sufficient space MUST be left for the provision of discharge pipework as detailed in National and Local Building Regulations.

* An additional 300 mm of space (total 600 mm) is required , when installing the optional 2-zone kit (PAC-TZ02-E) on top of the cylinder unit.

d
<Figure 4.1.2> Service access
The cylinder unit must be located indoors and in a frost-free environment, for example in a utility room, to minimise heat loss from stored water.
Repositioning
If you need to move the cylinder unit to a new position FULLY DRAIN the cylinder unit before moving to avoid damage to the unit.

4 Installation

4.2 Water Quality and System Preparation
General
� The water in both primary and sanitary circuit should be clean and with pH value of 6.5-8.0
� The followings are the maximum values; Calcium: 100 mg/L, Ca hardness: 250 mg/L Chloride: 100 mg/L, Copper: 0.3 mg/L
� Other constituents should be to European Directive 98/83 EC standards. � In known hard water areas, to prevent/minimise scaling, it is beneficial to restrict
the routine stored water temperature (DHW max. temp.) to 55�C.
Anti-Freeze
Anti-freeze solutions should use propylene glycol with a toxicity rating of Class 1 as listed in Clinical Toxicology of Commercial Products, 5th Edition. Notes: 1. Ethylene glycol is toxic and should NOT be used in the primary water
circuit in case of any cross-contamination of the potable circuit. 2. For 2-zone valve ON/OFF control, propylene glycol should be used.
New Installation (primary water circuit) en � Before connecting outdoor unit, thoroughly cleanse pipework of building debris,
solder etc using a suitable chemical cleansing agent. � Flush the system to remove chemical cleanser. � For all packaged model systems add a combined inhibitor and anti-freeze
solution to prevent damage to the pipework and system components. � For split model systems the responsible installer should decide if anti-freeze
solution is necessary for each site's conditions. Corrosion inhibitor however should ALWAYS be used.
Existing Installation (primary water circuit)
� Before connecting outdoor unit the existing heating circuit MUST be chemically cleansed to remove existing debris from the heating circuit.
� Flush the system to remove chemical cleanser. � For all packaged model systems, and the split model or PUMY system without
booster heater, add a combined inhibitor and anti-freeze solution to prevent damage to the pipework and system components. � For split model systems the responsible installer should decide if anti-freeze solution is necessary for each site's conditions. Corrosion inhibitor however should ALWAYS be used.
When using chemical cleansers and inhibitors always follow manufacturer's instructions and ensure the product is appropriate for the materials used in the water circuit

Minimum amount of water required in the space heating/cooling circuit

Outdoor heat pump unit

*Additional required water amount [L]

Indoor unit containing

Average / Warmer climate**

water

With

Without

Colder

amount [L] booster booster climate**

heater

Packaged PUZ-WM50 model PUZ-WM60

PUZ-WM85

PUZ-WM112

PUZ-HWM140

Split model

SUZ-SWM40 SUZ-SWM60

SUZ-SWM80

PUD-S(H)WM60

PUD-S(H)WM80

PUD-S(H)WM100

PUD-S(H)WM120

PUD-SHWM140

PUHZ-FRP71

PUHZ-SW75

PUHZ-SW100

PUHZ-SW120

PUHZ-SHW80

PUHZ-SHW112

PUHZ-SHW140

PUMY-P112

PUMY-P125

PUMY-P140

<Table 4.2.1> * If there is a bypass circuit, above table means minimum water
amount in case of bypass. ** Please refer to 2009/125/EC: Energy-related Products Directive and
Regulation (EU) No 813/2013 to confirm your climate zone.

Case 1. No division between primary and secondary circuit
� Please ensure the required water amount according to the table 4.2.1 by water pipe and radiator or underfloor heating.
Case 2. Separate primary and secondary circuit � If the interlock operation of primary and secondary pump is not available, please ensure required additional water in only primary circuit according to the table 4.2.1. � If the interlock operation of primary and secondary pump is available, please ensure total water amount of primary and secondary circuit according to the table 4.2.1. In case of the shortage of required water amount, please install buffer tank.

4.3 Water Pipe Work
Hot Water Pipework
The cylinder unit is UNVENTED. When installing unvented hot water systems building regulations part G3 (England and Wales), P3 (Scotland) and P5 (Northern Ireland) should be adhered to. If outside of the UK please adhere to your own country's regulations for unvented hot water systems.
Connect the flow for the DHW to pipe A (Figure 3.1). The function of the following safety components of the cylinder unit should be checked on installation for any abnormalities; � Pressure relief valve (Primary circuit and Tank) � Expansion vessel pre-charge (gas charge pressure)
The instruction on the following pages regarding safe discharge of hot water from Safety devices should be followed carefully. � The pipework will become very hot, so should be insulated to prevent burns. � When connecting pipework, ensure that no foreign objects such as debris or the
like enter the pipe.
Cold Water Pipework
Cold water to the suitable standard (see section 4.2) should be introduced to the system by connecting pipe B (Figure 3.1) using appropriate fittings.
9

Negative pressure prevention
To prevent negative pressure effecting DHW tank, installer should install appropriate pipework or use appropriate devices.
Hydraulic filter work (ONLY E*PT series)
Install a hydraulic filter or strainer (local supply) at the water intake ("Pipe E" in Fig.3.1)
Pipework Connections
Connections to the cylinder unit should be made using the 22 mm or 28 mm compression as appropriate. When connecting DHW pipes using compression fittings, insert copper liner for DHW pipe (accessory parts) into the pipes and tighten them from 0.75 to 1.25 turns. Do not over-tighten compression fittings as this will lead to deformation of the olive ring and potential leaks. Note: Before brazing pipes in the field, protect pipes on the cylinder unit using
wet towels etc as "heat shield".
Insulation of Pipework
� All exposed water pipework should be insulated to prevent unnecessary heat loss and condensation. To prevent condensate entering the cylinder unit, the pipework and connections at the top of the cylinder unit should be carefully insulated.
� Cold and hot water pipework should not be run close together where possible, to avoid unwanted heat transfer.
� Pipework between outdoor heat pump unit and cylinder unit should be insulated with suitable pipe insulation material with a thermal conductivity of 0.04 W/m.K.

4 Installation

Drain Pipework (ONLY ER series)
The optional part 'Drain pan stand' does not need to be set because the drain pan is installed.The drain should be set from the drain socket at left rear of the unit. The drain pipe should be installed to drain condensed water during cooling mode. � To prevent dirty water from draining directly onto the floor next to cylinder unit,
please connect appropriate discharge pipework from the cylinder drain pan. � Securely install the drain pipe to prevent leakage from the connection. � Securely insulate the drain pipe to prevent water dripping from the locally
supplied drain pipe. � Install the drain pipe at a down slope of 1/100 or more. � Do not place the drain pipe in drain channel where sulphuric gas exists. � After installation, check that the drain pipe drains water properly from the outlet of
the pipe to suitable discharge location.

<Installation> 1. The drain socket (inside diameter 26mm) is left rear of the cylinder unit. (Figure
4.3.1) 2. Fix the drain pipe (VP-20) which fits the drain socket with the polyvinyl chloride
type adhesive. 3. Set the drain pipework up to the outlet with the down grade of more than one
hundredth. Note: Securely support the locally supplied drain pipe to avoid the drain pipe falling
from the drain socket.

Drain hose

Drain socket

Sizing Expansion Vessels
Expansion vessel volume must fit the local system water volume. To size an expansion vessel for the heating circuit the following formula and graph can be used. When the necessary expansion vessel volume exceeds the volume of an built-in expansion vessel, install an additional expansion vessel so that the sum of the volumes of the expansion vessels exceeds the necessary expansion vessel volume. * For installation of an E**T***-*M*ED* model, provide and install a suitable
primary-side expansion vessel and additional 3 bar rated pressure relief valve in the field as the model DOES NOT come fitted with a primary-side expansion vessel.

� G P� + 0.098 P� + 0.098

Where;
V : Necessary expansion vessel volume [L]
: Water expansion coefficient G : Total volume of water in the system [L]
P� : Expansion vessel setting pressure [MPa] P� : Max. pressure during operation [MPa]

Graph to the right is for the following values

: at 70�C = 0.0229
P� : 0.1 MPa P� : 0.3 MPa *A 30% safety margin has been added.

Expansion vessel volume [L]

Expansion vessel sizing
25

50 100 150 200 250 300 350 400

System water volume [L]

Filling the System (Primary Circuit)
1. Check and charge expansion vessel. 2. Check all connections including factory fitted ones are tight. 3. Insulate pipework between cylinder unit and outdoor unit. 4. Thoroughly clean and flush, system of all debris. (see section 4.2 for instruction.) 5. Fill cylinder unit with potable water. Fill primary heating circuit with water and
suitable anti-freeze and inhibitor as necessary. Always use a filling loop with double check valve when filling the primary circuit to avoid back flow contamination of water supply. 6. Check for leakages. If leakage is found, retighten the screws onto the connections.
� Anti-freeze should always be used for packaged model systems (see section 4.2 for instruction). It is the responsibility of the installer to decide if anti-freeze solution should be used in split model systems depending on each site's conditions. Corrosion inhibitor should be used in both split model and packaged model systems. Figure 4.3.3 shows freezing temperature against anti-freeze concentration. This figure is an example for FERNOX ALPHI-11. For other anti-freeze, please refer to relevant manual.
� When connecting metal pipes of different materials insulate the joints to prevent a corrosive reaction taking place which will damage the pipework.

7. Pressurise system to 1 bar. 8. Release all trapped air using air vents during and following heating period. 9. Top up with water as necessary. (If pressure is below 1 bar) 10. After removing the air, automatic air vent MUST be closed.

Freezing temperature [�C]

-5

-10

-15

-20

-25 0

Anti-freeze concentration [%]

4 Installation

Water Circulation Pump Characteristics
1. Primary circuit Pump speed can be selected by main remote controller setting (see <Figure 4.3.4 to 4.3.8> ). Adjust the pump speed setting so that the flow rate in the primary circuit is appropriate for the outdoor unit installed (see Table 4.3.1). It may be necessary to add an additional pump to the system depending on the length and lift of the primary circuit. For outdoor unit model not listed in the <Table 4.3.1>, refer to Water flow rate range in the specification table of outdoor unit Data Book.

<Second pump > If a second pump is required for the installation please read the following carefully. If a second pump is used in the system it can be positioned in 2 ways. The position of the pump influences which terminal of the FTC the signal cable should be wired to. If the additional pump(s) have current greater than 1A please use appropriate relay. Pump signal cable can either be wired to TBO.1 1-2 or CNP1 but NOT both.

Option 1 (Space heating/cooling only)

If the second pump is being used for the heating circuit only then the signal cable

should be wired to TBO.1 terminals 3 and 4 (OUT2). In this position the pump can be run at a different speed to the cylinder unit's in-built pump.

Option 2 (Primary circuit DHW and space heating/cooling) If the second pump is being used in the primary circuit between the cylinder unit and the outdoor unit (Package system ONLY) then the signal cable should be wired to TBO.1 terminals 1 and 2 (OUT1). In this position the pump speed MUST match the speed of the cylinder unit's in-built pump. Note: Refer to 5.2 Connecting inputs/outputs.

Water circulation pump characteristics

E*PT17X series 80

External static pressure [kPa]

5 10 15 20 25

Flow rate [L/min]

Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1
30 35 40

External static pressure [kPa]

80 70 60 50 40 30 20 10
0 0

E*ST17/20D series
Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1
5 10 15 20 25 30 35 40
Flow rate [L/min] <Figure 4.3.6>

External static pressure [kPa]

80 70 60 50 40 30 20 10
0 0
11

E*ST20/30C series
Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1
5 10 15 20 25 30 35 40
Flow rate [L/min] <Figure 4.3.8>

External static pressure [kPa]

Outdoor heat pump unit

Packaged model PUZ-WM50

PUZ-WM60

PUZ-WM85

PUZ-WM112

PUZ-HWM140

Split model

SUZ-SWM40

SUZ-SWM60

SUZ-SWM80

PUD-S(H)WM60

PUD-S(H)WM80

PUD-S(H)WM100

PUD-S(H)WM120

PUD-SHWM140

PUHZ-FRP71

PUHZ-SW75

PUHZ-SW100

PUHZ-SW120

PUHZ-SHW80

PUHZ-SHW112

PUHZ-SHW140

PUMY-P112

PUMY-P125

PUMY-P140

Water flow rate range [L/min] 6.5 - 14.3 8.6 - 17.2 10.8 - 24.4 14.4 - 32.1 17.9 - 36.9 6.5 - 11.4 7.2 - 17.2 7.8 - 21.5 9.0 - 22.9 9.0 - 22.9 14.3 - 34.4 14.3 - 34.4 14.3 - 34.4 11.5 - 22.9 10.2 - 22.9 14.4 - 32.1 20.1 - 36.9 10.2 - 22.9 14.4 - 32.1 17.9 - 36.9 17.9 - 35.8 17.9 - 35.8 17.9 - 35.8

* If the water flow rate is less than the minimum flow rate setting of the flow
sensor(default 5.0 L/min), the flow rate error will be activated. If the water flow rate exceeds 36.9 L/min (E**T20/30 series) or 25.8 L/min
(E**T17 series), the flow speed will be greater than 2.0 m/s, which could erode the pipes.

2. Sanitary circuit Default setting: Speed 2 DHW circulation pump MUST be set to speed 2.

80 70 60 50 40 30 20 10
0 0
80 70 60 50 40 30 20 10
0 0

E*PT20/30X series
Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1
5 10 15 20 25 30 35 40
Flow rate [L/min] <Figure 4.3.5> E*ST30D series
Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1
5 10 15 20 25 30 35 40
Flow rate [L/min] <Figure 4.3.7>

*For installation of E*PT series, set its pump speed with a pressure drop between the cylinder unit and the outdoor unit factored into the external static
pressure.

4 Installation

Immersion heater
When an immersion heater is fitted, do NOT energise the heater until the DHW tank is full of water. Also do NOT energise any immersion heater if any sterilisation chemicals remain in the DHW tank as this will cause premature failure of the heater.

Safety Device Connections
The expansion relief valve on the secondary hot water side, and the temperature and pressure (T&P) relief valve (*A), both need appropriate discharge pipework. There must be no valve fitted between the expansion relief valve and the tank.
*A EHPT20X-MHEDW is equipped with T & P relief valve on the tank (2). Any other models are equipped with Pressure relief valve, fitted to the DHW pipework (3).
Note : 1. Do not secure the screws excessively when connecting the Discharge pipe, otherwise it may result in damage to the cylinder unit.
<For UK> The right side panel has a plate (*B) so that connection can be made to the factory fitted temperature and pressure relief valve. If you wish to make the connection in a different position you will have to cut a hole in the side panel yourself. However it remains necessary that the drainage parameters outlined in the appropriate Building Regulations are complied with.
*B Unscrew the plate on the right-side panel, connect the Pressure relief valve to the discharge pipework, and refit the plate. Always replace the plate so that no gaps exist between the plate and side panel and the plate and drain pipe to avoid heat loss. In accordance with Building Regulations a tundish must be fitted into the pipework within 500 mm of the safety device (also see Figure 4.4.1). Due to the distance between the two safety devices it may be necessary to fit each safety device with its own tundish before you run the pipework together to a safe discharge (see Figure 4.3.9).
Note : 2. Alternatively the discharges from the expansion relief valve and T&P relief valve may commonly discharge to a singular tundish, so long as this tundish is located within 500 mm of the T&P relief valve in UK. When connecting discharge pipes to the safety devices, beware not to strain the inlet connections.

Diagram Description part No.

Expansion relief valve (part of inlet control group)

T&P relief valve

Connection size 15 mm
15 mm /G 1/2

3 Pressure relief valve

G 1/2

Connection type Compression
Compression/ Female Female

<UK model> EHPT20X-MHEDW
DHW

1 Cold water inlet

2
en
Tundish

<Other models>
3 DHW

The expansion vessel on the sanitary water side shall be installed as necessary in accordance with your local regulations.
Cold water inlet

Always refer to local regulations when installing discharge pipework. Install discharge pipework in a frost-free environment. It is necessary to provide appropriate drainage from the pressure relief valve situated on top of the cylinder unit to prevent damage to the unit and the surrounding area from any steam or hot water released. Relief valves MUST NOT be used for any other purpose.
For UK use WK02UK-E kit, for other countries please see below; � Any discharge pipework should be capable of withstanding discharge of hot
water. Discharge pipework should be installed in a continuously downward direction. Discharge pipework must be left open to the environment.

Piping diagram for 2-zone temperature control
Connect the pipe work and locally supplied parts according to the relevant circuit diagram shown in Section 3. Technical Information, of this manual. For more details on wiring, refer to "5.3 Wiring for 2-zone temperature control".
Note: Do not install the thermistors on the mixing tank. This could affect correct monitoring of flow and return temperatures through each zone. Install the Zone2 flow temp. thermistor (THW8) near the mixing valve.

4 Installation

4.4 Safety Device Discharge Arrangements (G3)
The following instructions are a requirement of UK Building Regulations and must be adhered to. For other countries please refer to local legislation. If you are in any doubt please seek advice from local building planning office.

1. Position the inlet control group so that discharge from both safety valves can be joined together via a 15 mm end feed Tee.
2. Connect the tundish and route the discharge pipe as shown in Figure 4.4.1. 3. The tundish should be fitted vertically and as close to the safety device as pos-
sible and within 500 mm of the device. 4. The tundish should be visible to occupants and positioned away from electrical
devices. 5. The discharge pipe (D2) from the tundish should terminate in a safe place
where there is no risk to persons in the vicinity of the discharge, be of metal construction and:

A) Be at least one pipe size larger than the nominal outlet size of the safety de-

vice unless its total equivalent hydraulic resistance exceeds that of a straight

pipe 9 m long i.e. discharge pipes between 9 m and 18 m equivalent resist-

ance length should be at least two sizes larger than the nominal outlet size

of the safety device, between 18 and 27 m at least 3 sizes larger, and so on.

Bends must be taken into account in calculating the flow resistance. Refer to

Figure 4.4.1, Table 4.4.1 and the worked example. An alternative approach

for sizing discharge pipes would be to follow BS 6700: 1987 specification for

design installation, testing and maintenance of services supplying water for

domestic use within buildings and their cartilages.

B) Have a vertical section of pipe at least 300 mm long, below the tundish before any elbows or bends in the pipework.

C) Be installed with a continuous fall.

D) Have discharges visible at both the tundish and the final point of discharge but where this is not possible or is practically difficult there should be clear visibility at one or other of these locations. Examples of acceptable discharge arrange-
ments are:

Metal discharge pipe (D1) temperature relief valve to tundish

Safety device (e.g. temperature
relief valve)

500 mm maximum

Tundish

300 mm minimum

Metal discharge pipe (D2) from tundish, with continuous fall. See Point 5.D i-iv, Table 4.4.1 and worked example

i. Ideally below a fixed grating and above the water seal in a trapped gully.
ii. Downward discharges at low level; i.e. up to 100 mm above external surfaces such as car parks, hard standings, grassed areas etc. are acceptable providing that where children may play or otherwise come into contact with discharges a wire cage or similar guard is positioned to prevent contact, whilst maintaining visibility.
iii. Discharges at high level; e.g. into a metal hopper and metal down pipe with the end of the discharge pipe clearly visible (tundish visible or not) or onto a roof capable of withstanding high temperature discharges of water and 3 m from any plastic guttering system that would collect such discharges (tundish visible).
iv. Where a single pipe serves a number of discharges, such as in blocks of flats, the number served should be limited to not more than 6 systems so that any installation discharging can be traced reasonably easily. The single common discharge pipe should be at least one pipe size larger than the largest individual discharge pipe (D2) to be connected. If unvented hot water storage systems are installed where discharges from safety devices may not be apparent i.e. in dwellings occupied by blind, infirm or disabled people, consideration should be given to the installation of an electronically operated device to warn when discharge takes place.
Note: The discharge will consist of scalding water and steam. Asphalt, roofing felt and nonmetallic rainwater goods may be damaged by such discharges.
Worked example: The example below is for a G� temperature relief valve with a discharge pipe (D2) having 4 No. elbows and length of 7 m from the tundish to the point of discharge.
From Table 4.4.1: Maximum resistance allowed for a straight length of 22 mm copper discharge pipe (D2) from a G� temperature relief valve is: 9.0 m subtract the resistance for 4 No. 22 mm elbows at 0.8 m each = 3.2 m. Therefore the maximum permitted length equates to: 5.8 m. 5.8 m is less than the actual length of 7 m, therefore calculate the next largest size. Maximum resistance allowed for a straight length of 28 mm pipe (D2) from a G� temperature relief valve equates to: 18 m Subtract the resistance for 4 No. 28 mm elbows at 1.0 m each = 4 m. Therefore the maximum permitted length equates to: 14 m. As the actual length is 7 m, a 28 mm (D2) copper pipe will be satisfactory.
Discharge below fixed grating (Point 5.D gives alternative points of discharge)
Fixed grating

Trapped gulley

Valve outlet Minimum size of

size

discharge pipe D1

G 1/2

15 mm

G 3/4

22 mm

28 mm

Minimum size of discharge pipe D2 from tundish
22 mm 28 mm 35 mm 28 mm 35 mm 42 mm 35 mm 42 mm 54 mm

Maximum resistance allowed, expressed as a length of straight pipe (no elbows or bends)
Up to 9 m Up to 18 m Up to 27 m Up to 9 m Up to 18 m Up to 27 m Up to 9 m Up to 18 m Up to 27 m

Resistance created by each elbow or bend
0.8 m 1.0 m 1.4 m 1.0 m 1.4 m 1.7 m 1.4 m 1.7 m 2.3 m

4 Installation

4.5 Electrical Connection

All electrical work should be carried out by a suitably qualified technician. Failure to comply with this could lead to electrocution, fire, and death. It will also invalidate product warranty. All wiring should be according to national wiring regula-
tions.

Breaker abbreviation ECB1 ECB2 TB1

Meaning Earth leakage circuit breaker for booster heater Earth leakage circuit breaker for immersion heater Terminal block 1

ECB1 ECB2

ECB1

E B

TB1 <1 phase (with immersion heater)>

TB1 <3 phase (without immersion heater)>

The cylinder unit can be powered in two ways. 1. Power cable is run from the outdoor unit to the cylinder unit. 2. Cylinder unit has independent power source
Connections should be made to the terminals indicated in the figures to the left below depending on the phase.
Booster heater and immersion heater should be connected independently from one another to dedicated power supplies.

Locally supplied wiring should be inserted through the inlets situated on the

top of the cylinder unit. (Refer to <Table 3.2>.)

Wiring should be fed down the right hand side of the control and electrical

box and clamped in place using clips provided.

The wires should be inserted individually through the cable inlets as below.

2 Outputs wire

3 Indoor-Outdoor wire

5 Power line(B.H.)/ Power line(I.H.)(Option)

7 Signal input wires

1 23

456

Connect the outdoor unit � cylinder unit connecting cable to TB1.

Connect the power cable for the booster heater to ECB1.

If immersion heater is present, connect the power cable to ECB2.

� Avoid contact between wiring and parts ( ). � Make sure that ECB1 and ECB2 are ON. � On completion of wiring ensure main remote controller cable is con-
nected to the relay connector.

Cylinder unit powered via outdoor unit
(If you want to use independent source, go to the Mitsubishi website.)
<1 phase>
Affix label A that is included with the manuals near each wiring diagram for cylinder unit and outdoor units.

Power supply ~/N 230 V 50 Hz

Earth leakage circuit breaker
*1 ,*2

Wiring circuit breaker
or Isolating switch

Outdoor unit

Cylinder unit
TB1
L N
To control board S1 S2 S3

Power supply ~/N 230 V 50 Hz
Power supply ~/N 230 V 50 Hz

Wiring circuit breaker or Isolating switch
Wiring circuit breaker or Isolating switch

ECB1

For

L booster

heater (Primary circuit)

ECB2

For L immersion

heater (DHW tank)

<Figure 4.5.1> Electrical connections 1 phase

*1. If the installed earth leakage circuit breaker does not have an over-current protection function, install a breaker with that function along the same power line.
*2. A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). The breaker shall be provided to ensure disconnection of all active phase conductors of the supply.
*3. Max. 45 m If 2.5 mm� used, Max. 50 m If 2.5 mm� used and S3 separated, Max. 80 m
*4. The values given in the table above are not always measured against the ground value.

Description

Power supply

Booster heater (Primary circuit) ~/N 230 V 50 Hz

Immersion heater (DHW tank) ~/N 230 V 50 Hz

Capacity
2 kW 6 kW 3 kW

Breaker
16 A *2 32 A *2 16 A *2

Wiring
2.5 mm� 6.0 mm� 2.5 mm�

Wiring
Circuit
Wiring No.
rating
� size (mm�)

Cylinder unit - Outdoor unit

Cylinder unit - Outdoor unit earth *3

Cylinder unit - Outdoor unit S1 - S2 *4

Cylinder unit - Outdoor unit S2 - S3 *4

3 � 1.5 (polar) 1 � Min. 1.5 230 V AC 24 V DC

Notes:

1. Wiring size must comply with the applicable local and national codes.
2. Indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 60245 IEC 57) Indoor unit power supply cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 60227 IEC 53)
3. Install an earth longer than other cables.
4. Please keep enough output capacity of power supply for each heater. Insufficient power supply capacity might cause chattering.

4 Installation

<3 phase>
Affix label A that is included with the manuals near each wiring diagram for cylinder unit and outdoor units.

Outdoor unit

Power supply 3N~ 400 V 50 Hz

Earth leakage circuit breaker
*1, *2

Wiring circuit breaker
or Isolating switch

Power supply 3~ 400 V 50 Hz (E**T***-YM9*D) 3~ 230 V 50 Hz (E**T***-TM9*D)

Wiring circuit breaker
or Isolating switch

Power supply ~/N 230 V 50 Hz

Wiring circuit breaker
or Isolating switch

Cylinder unit
TB1
L N
To control board S1 S2 S3

ECB1

L1 For

booster heater

L3 (Primary circuit)

ECB2
For L immersion
heater N (DHW tank)

<Figure 4.5.2> Electrical connections 3 phase

Description Booster heater (Primary circuit) Immersion heater (DHW tank)

Power supply
3~ 400 V 50 Hz 3~ 230 V 50 Hz ~/N 230 V 50 Hz

Capacity (Indoor unit Ref.) Breaker

9 kW

16 A *2

9 kW

32 A *2

3 kW

16 A *2

Wiring
2.5 mm� 6.0 mm� 2.5 mm�

Wiring Wiring No. � size (mm�)

Cylinder unit - Outdoor unit

3 � 1.5 (polar)

Cylinder unit - Outdoor unit earth *3

1 � Min. 1.5

Circuit rating

Cylinder unit - Outdoor unit S1 - S2 *4

230 V AC

Cylinder unit - Outdoor unit S2 - S3 *4

24 V DC

Notes:

5 System Set Up

SW5

5.1 DIP Switch Functions

SW4

The DIP switch number is printed on the circuit board next to the relevant switches. The word ON is printed on the circuit board and on the DIP switch block itself. To move the switch you will need to use a pin or the corner of a thin metal ruler or similar.
DIP switch settings are listed below in Table 5.1.1. Only an authorised installer can change DIP switch setting under one's own responsibility according to the installation condition. Make sure to turn off both indoor unit and outdoor unit power supplies before changing the switch settings.

SW3
SW2 SW1 SW6
<Figure 5.1.1>

DIP switch

Function

OFF

Default settings: Indoor unit model

SW1 SW1-1 Boiler SW1-2 Heat pump maximum outlet water temperature SW1-3 DHW tank

WITHOUT Boiler 55�C WITHOUT DHW tank

WITH Boiler 60�C WITH DHW tank

OFF ON *1 ON

SW1-4 Immersion heater

WITHOUT Immersion heater

WITH Immersion heater

OFF: Except EHPT20X-MHEDW
ON : EHPT20X-MHEDW

SW1-5 Booster heater

WITHOUT Booster heater

WITH Booster heater

OFF: E**T***-M**D* ON : E**T***-*M 2/6/9*D

SW1-6 Booster heater function

For heating only

For heating and DHW

OFF: E**T***-M**D*

ON : E**T***-*M 2/6/9*D

SW1-7 Outdoor unit type

Split type

Packaged type

OFF: E*ST***-*M**D ON : E*PT**X-*M**D*

SW1-8 Wireless remote controller

WITHOUT Wireless remote controller WITH Wireless remote controller

OFF

SW2 SW2-1 Room thermostat 1 input (IN1) logic change

Zone1 operation stop at thermostat short Zone1 operation stop at thermostat open OFF

SW2-2 Flow switch 1 input (IN2) logic change

Failure detection at short

Failure detection at open

OFF

SW2-3 Booster heater capacity restriction

Inactive

Active

OFF: Except E**T***-VM2*D
ON : E**T***-VM2*D

SW2-4 Cooling mode function

Inactive

Active

OFF: EH*T***-*M**D* ON : ER*T***-*M**D

SW2-5

Automatic switch to backup heat source operation (When outdoor unit stops by error)

Inactive

Active *2

OFF

SW2-6 Mixing tank

WITHOUT Mixing tank

WITH Mixing tank

OFF

SW2-7 2-zone temperature control

Inactive

Active *6

OFF

SW2-8 Flow sensor

WITHOUT Flow sensor

WITH Flow sensor

SW3 SW3-1 Room thermostat 2 input (IN6) logic change

Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open OFF

SW3-2 Flow switch 2 and 3 input logic change

Failure detection at short

Failure detection at open

OFF

SW3-3 3-way valve type SW3-4 Electric energy meter

AC motor WITHOUT Electric energy meter

Stepping motor WITH Electric energy meter

OFF: Except E**T17X/17D/20D*M**D*
ON: E**T17X/17D/20D-*M**D
OFF

SW3-5 Heating mode function *3

Inactive

Active

SW3-6 2-zone valve ON/OFF control

Inactive

Active

OFF

SW3-7 Heat exchanger for DHW

Coil in tank

External plate HEX

SW3-8 Heat meter

WITHOUT Heat meter

WITH Heat meter

OFF

SW4 SW4-1

OFF

SW4-2

OFF

SW4-3

OFF

SW4-4 Indoor unit only operation (during installation work) *4 Inactive

Active

OFF

SW4-5 Emergency mode (Heater only operation)

Normal

Emergency mode (Heater only operation) OFF *5

SW4-6 Emergency mode (Boiler operation)

Normal

Emergency mode (Boiler operation) OFF *5

SW5 SW5-1

OFF

SW5-2 Advanced auto adaptation

Inactive

Active

SW5-3

Capacity code

SW5-4

SW5-3 SW5-4 SW5-5 SW5-6 SW5-7

SW5-5 SW5-6 SW5-7

E**T**C-*M**D E**T**D-*M**D E**T**X-*M**D*

ON ON OFF

ON OFF OFF

ON ON OFF

OFF OFF OFF

SW5-8

OFF

SW6 SW6-1

OFF

SW6-2

SW6-3 Pressure sensor

SW6-4 Analog output signal (0-10 V)

-- Inactive Inactive

-- Active Active

OFF OFF: Except E*ST**D-*M**D ON: E*ST**D-*M**D OFF

SW6-5

OFF

Notes:

*1. When the cylinder unit is connected with a PUMY-P outdoor unit of which maximum outlet water temperature is 55�C, DIP SW1-2 must be changed to OFF.
*2. External output (OUT11) will be available. For safety reasons, this function is not available for certain errors. (In that case, system operation must be stopped and only the water circulation pump keeps running.)
*3. This switch functions only when the cylinder unit is connected with a PUHZ-FRP outdoor unit. When another type of outdoor unit is connected, the heating mode function is active regardless of the fact that this switch is ON or OFF.
*4. Space heating and DHW can be operated only in indoor unit, like an electric heater. (Refer to "5.4 Indoor unit only operation". ) *5. If emergency mode is no longer required, return the switch to OFF position. *6. Active only when SW3-6 is set to OFF.
16

5 System Set Up

5.2 Connecting inputs/outputs

1 TBO.1

4 3
5

6 1

1 TBO.2

1 TBO.3 3

1 TBO.4

CNBC

3 (GY) 3

3 CNBH 5 (WH)
7

CNP1 (WH) CNP4 (RD)
CNV1 (WH)
CNIH (OG) CNBHT
(BK)

1
SW5
8 1 SW4 6 1
SW3
8 1
SW2
8 1
SW1
8

1 SW6
5
TAB1

F2 LED1
LED2 LED3

1 CN01 (BK) 3
5
F1
CN3C 1 (BU) 3
CNPWM 1 (WH) 3
1
CN851 (BK)
8
1 CNRF (WH)
5
1 CN105
(RD) 5
1 CNIT (BU)
5
CN22 1 (BU) 2

LED4

CN108

Wiring specification and local supply parts

Item Signal input

Name Signal input

Model and specifications Use sheathed vinyl coated cord or cable.

function

wire

Max. 30 m

Wire type: CV, CVS or equivalent

Wire size: Stranded wire 0.13 mm� to 0.52 mm�

Switch

Solid wire: �0.4 mm to �0.8 mm Non-voltage "a" contact signals Remote switch: minimum applicable load 12 V DC, 1 mA

Note: Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).

CN401 (WH)
1

CN1A (WH)
1

CNW5 CNW12

(BU) (RD)

CN21 (YE)
1

CN20 (RD)
1
2

8765 43 21 8765 43 21 8765 43 21 876543 21 8765 43 21 876543 21

TBI.1

TBI.2

TBI.3

TBI.4

TBI.5

TBI.6

Signal inputs

Name Terminal block Connector Item

IN1 TBI.1 7-8

-- Room thermostat 1 input *1

IN2 TBI.1 5-6

-- Flow switch 1 input

IN3 TBI.1 3-4

-- Flow switch 2 input (Zone1)

IN4 TBI.1 1-2

-- Demand control input

IN5 TBI.2 7-8

-- Outdoor thermostat input *2

IN6 TBI.2 5-6

-- Room thermostat 2 input *1

IN7 TBI.2 3-4

-- Flow switch 3 input (Zone2)

IN8 TBI.3 7-8

-- Electric energy meter 1

IN9 TBI.3 5-6

-- Electric energy meter 2

IN10 TBI.2 1-2

-- Heat meter

IN11 TBI.3 3-4 IN12 TBI.3 1-2

-- --

Smart grid ready input

INA1 TBI.4 1-3

CN1A

Flow sensor

OFF (Open)

ON (Short)

Refer to SW2-1 in <5.1 DIP Switch Functions>.

Refer to SW2-2 in <5.1 DIP Switch Functions>.

Refer to SW3-2 in <5.1 DIP Switch Functions>.

Normal

Heat source OFF/ Boiler operation *3

Standard operation Heater operation/ Boiler operation *3

Refer to SW3-1 in <5.1 DIP Switch Functions>.

Refer to SW3-2 in <5.1 DIP Switch Functions>.

*1. Set the ON/OFF cycle time of the room thermostat for 10 minutes or more; otherwise the compressor may be damaged. *2. If using outdoor thermostat for controlling operation of heaters, the lifetime of the heaters and related parts may be reduced. *3. To turn on the boiler operation, use the main remote controller to select "Boiler" in "External input setting" screen in the service menu. *4. Connectable electric energy meter and heat meter

Pulse type Pulse duration
Possible unit of pulse

Voltage free contact for 12 VDC detection by FTC (TBI.2 1pin ,TBI.3 5 and 7 pins have a positive voltage.)

Minimum ON time: 40 ms Minimum OFF time: 100 ms

0.1 pulse/kWh

1 pulse/kWh

10 pulse/kWh

100 pulse/kWh

1000 pulse/kWh

Those values can be set by the main remote controller. (Refer to the menu tree in "Main remote controller".) *5. As for the SG ready, refer to "5.5 Smart grid ready".

Thermistor inputs

Name Terminal block Connector

TH1

CN20

TH2

CN21

THW1

CNW12 1-2

THW2

CNW12 3-4

THW5A

CNW5 1-2

THW5B

CNW5 3-4

THW6 TBI.5 7-8

THW7 TBI.5 5-6

THW8 TBI.5 3-4

THW9 TBI.5 1-2

THWB1 TBI.6 7-8

THW10 TBI.6 5-6

Item Thermistor (Room temp.) (Option) Thermistor (Ref. liquid temp.) Thermistor (Flow water temp.) Thermistor (Return water temp.) Thermistor (DHW tank upper water temp.) Thermistor (DHW tank lower water temp.) Thermistor (Zone1 flow water temp.) (Option) *1 Thermistor (Zone1 return water temp.) (Option) *1 Thermistor (Zone2 flow water temp.) (Option) *1 Thermistor (Zone2 return water temp.) (Option) *1 Thermistor (Boiler flow water temp.) (Option) *1 Thermistor (Mixing tank water temp.) (Option) *1

Optional part model PAC-SE41TS-E
-- -- -- -- --
PAC-TH011-E
PAC-TH011-E
PAC-TH012HT-E(5 m)/ PAC-TH012HTL-E(30 m)

Ensure to wire thermistor wirings away from the power line and/or OUT1 to 16 wirings. *1. The maximum length of the thermistor wiring is 30 m.
The length of the optional thermistors are 5 m. If you need to splice and extend the wirings, following points must be carried out. 1) Connect the wirings by soldering. 2) Insulate each connecting point against dust and water. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).

5 System Set Up

Outputs

Name Terminal block Connector Item

OFF ON Signal/Max current

Max. total current

OUT1 TBO.1 1-2

CNP1

Water circulation pump 1 output (Space heating/cooling & DHW)

OFF ON

230 V AC 1.0 A Max. (Inrush current 40 A Max.)

OUT2 TBO.1 3-4 OUT3 TBO.1 5-6

Water circulation pump 2 output (Space heating/cooling for Zone1) OFF ON

230 V AC 1.0 A Max. (Inrush current 40 A Max.)

Water circulation pump 3 output (Space heating/cooling for Zone2) *1 OFF ON 230 V AC 1.0 A Max.

4.0 A (a)

-- 2-way valve 2b output *2

(Inrush current 40 A Max.)

OUT14

CNP4

Water circulation pump 4 output (DHW)

OFF ON

230 V AC 1.0 A Max. (Inrush current 40 A Max.)

TBO.2 4-6 OUT4
--

CNV1 CN851

3-way valve (2-way valve) output 3-way valve output

Heating DHW 230 V AC 0.1 A Max.

TBO.2 1-2 OUT5
TBO.2 2-3

-- Mixing valve output *1

Stop

Close 230 V AC 0.1 A Max.
Open

OUT6

CNBH 1-3 Booster heater 1 output

OFF ON 230 V AC 0.5 A Max. (Relay)

OUT7

OUT8 TBO.4 7-8

OUT9 TBO.4 5-6

OUT11 TBO.3 5-6

OUT12 TBO.3 7-8

OUT13 TBO.4 3-4

CNBH 5-7 --
CNIH -- -- --

Booster heater 2 output Cooling signal output Immersion heater output Error output Defrost output 2-way valve 2a output *2

OFF ON OFF ON

230 V AC 0.5 A Max. (Relay) 3.0 A (b)
230 V AC 0.5 A Max.

OFF ON 230 V AC 0.5 A Max. (Relay)

Normal Error 230 V AC 0.5 A Max.

Normal Defrost 230 V AC 0.5 A Max.

OFF ON 230 V AC 0.1 A Max.

OUT15 TBO.4 1-2

-- Comp ON signal

OFF ON 230 V AC 0.5 A Max.

OUT10 TBO.3 1-2 OUT16 TBO.3 3-4

-- Boiler output -- Heating/Cooling thermo ON signal

OFF ON OFF ON

non-voltage contact �220 - 240 V AC (30 V DC) 0.5 A or less �10 mA 5 V DC or more

OUTA1 TBI.4 7-8

-- Analog output

0 - 10 V 0 - 10 V DC 5 mA max.

Do not connect to the terminals that are indicated as "--" in the "Terminal block" field. *1 For 2-zone temperature control. *2 For 2-zone valve ON/OFF control.

NLNLNL

NLL N

NLNL

NL NLNLNL

TBO.1 1 2 3 4 5 6 TBO.2 1 2 3 4 5 6 TBO.3 1 2 3 4 5 6 7 8 TBO.4 1 2 3 4 5 6 7 8 TBI.4 8 7

OUT1 OUT2 OUT3

Close Open
OUT5

OUT4

OUT10 OUT16OUT11 OUT12

OUT15 OUT13 OUT9 OUT8

OUTA1

How to use TBO.1 to 4

Wiring specification and local supply parts

Tool Tool

Item

Name

Model and specifications

External output function Outputs wire

Use sheathed vinyl coated cord or cable. Max. 30 m Wire type: CV, CVS or equivalent Wire size: Stranded wire 0.25 mm� to 1.5 mm�
Solid wire: �0.57 mm to �1.2 mm

Conductor Outline view

Conductor Top view

Connect them using either way as shown above.

Notes:

1. When the cylinder unit is powered via outdoor unit, the maximum grand total current of (a)+(b) is 3.0 A.

2. Do not connect multiple water circulation pumps directly to each output (OUT1, OUT2, and OUT3). In such a case, connect them via (a) relay(s).

3. Do not connect water circulation pumps to both TBO.1 1-2 and CNP1 at the same time.

4. Connect an appropriate surge absorber to OUT10 (TBO.3 1-2) depending on the load at site.

5. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).

6. Use the same thing as the Signal input wire for OUTA1 wiring.

5.3 Wiring for 2-zone temperature control
Connect the pipe work and locally supplied parts according to the relevant circuit diagram shown "Local system" in Section 3, of this manual.
<Mixing valve> Connect the signal line to open Port A (hot water inlet port) to TBO. 2-3 (Open), the signal line to open Port B (cold water inlet port) to TBO. 2-1 (Close) , and the neutral terminal wire to TBO. 2-2 (N).
<Thermistor> � Do not install the thermistors on the mixing tank. � Install the Zone2 flow temp. thermistor (THW8) near the mixing valve. � The maximum length of the thermistor wiring is 30 m. � The length of the optional thermistors are 5 m. If you need to splice and extend the wirings, following points must be carried out. 1) Connect the wirings by soldering. 2) Insulate each connecting point against dust and water.

NL FTC TBO.2 1 2 3

from mixing tank A
to mixing tank

to Zone2 heat emitter

Motorized mixing

valve

from Zone2 heat emitter

Close N Open

5 System Set Up

5.4 Indoor unit only operation (during installation work)

In the case when DHW or heating operation is required prior to connection of the

2. To end operation*2

outdoor unit; i.e. during installation work, an electric heater in indoor unit (*1) can be used. *1 Model with electric heater only.

Turn OFF the indoor unit power supply. Turn DIP switch 4-4 and 4-5 OFF. *2 When the indoor unit only operation is ended, ensure to check over the settings

after outdoor unit is connected.

1. To start operation Check if the indoor unit power supply is OFF, and turn DIP switch 4-4 and 4-5 ON. Turn ON the indoor unit power supply.

Note: Prolonged running of this operation may affect the life of the electric heater.

5.5 Smart grid ready

In DHW or heating operation, the commands in the table below can be used.

IN11 OFF (open) ON (short) OFF (open) ON (short)

IN12 OFF (open) OFF (open) ON (short) ON (short)

Meaning Normal operation Switch-on recommendation Switch-off command Switch-on command

TBI.3 4 3 2 1
IN11 IN12

en 5.6 Using SD memory card
The cylinder unit is equipped with an SD memory card interface in FTC. Using an SD memory card can simplify main remote controller settings and can store operating logs. *1
*1 To edit main remote controller settings or to check operating data, an Ecodan service tool (for use with PC) is required.

<Handling precautions> (1) Use an SD memory card that complies with the SD standards. Check that the
SD memory card has a logo on it of those shown to the right. (2) SD memory cards to the SD standards include SD, SDHC, mini SD, micro SD,
and micro SDHC memory cards. The capacities are available up to 32 GB. Choose that with a maximum allowable temperature of 55�C. (3) When the SD memory card is a mini SD, mini SDHC, micro SD, or micro SDHC memory card, use an SD memory card converter adapter. (4) Before writing to the SD memory card, release the write-protect switch.

(5) Before inserting or ejecting an SD memory card, make sure to power off the system. If an SD memory card is inserted or ejected with the system powered on, the stored data could be corrupted or the SD memory card be damaged. *An SD memory card is live for a short duration after the system is powered off. Before insertion or ejection wait until the LED lamps on the FTC control board are all off.
(6) The read and write operations have been verified using the following SD memory cards, however, these operations are not always guaranteed as the specifications of these SD memory cards could change.

Manufacturer Verbatim SanDisk Panasonic Arvato Arvato SanDisk Verbatim Verbatim VANTASTEK

Model #44015 SDSDB-002G-B35 RP-SDP04GE1K 2GB PS8032 TSB 24nm MLC 2GB PS8035 TSB A19nm MLC SDSDUN-008G-G46 #43961 #44018 VSDHC08

Tested in Mar. 2012 Oct. 2011 Oct. 2011 Jun. 2012 Jul. 2014 Oct. 2016 Oct. 2016 Oct. 2016 Sep. 2017

Before using a new SD memory card (including the card that comes with the unit), always check that the SD memory card can be safely read and written to by the FTC controller. <How to check read and write operations>
a) Check for correct wiring of power supply to the system. For more details, refer to section 4.5. (Do not power on the system at this point.)
b) Insert an SD memory card. c) Power on the system. d) The LED4 lamp lights if the read and write operations are successfully
completed. If the LED4 lamp continues blinking or does not light, the SD memory card cannot be read or written to by the FTC controller.

(7) Make sure to follow the instruction and the requirement of the SD memory card's manufacturer.
(8) Format the SD memory card if determined unreadable in step (6). This could make it readable. Download an SD card formatter from the following site. SD Association homepage: https://www.sdcard.org/home/
(9) FTC supports FAT file system but not NTFS file system. (10) Mitsubishi Electric is not liable for any damages, in whole or in part, including
failure of writing to an SD memory card, and corruption and loss of the saved data, or the like. Back up saved data as necessary. (11) Do not touch any electronic parts on the FTC control board when inserting or ejecting an SD memory card, or else the control board could fail.
Logos
Capacities 2 GB to 32 GB *2 SD speed classes All � The SD Logo is a trademark of SD-3C, LLC. The mini SD logo is a trademark of SD-3C, LLC. The micro SD logo is a trademark of SD-3C, LLC.
*2 A 2 GB SD memory card stores up to 30 days of operation logs.

5 System Set Up

5.7 Main remote controller
To change the settings of your heating/cooling system please use the main remote controller located on the front panel of the cylinder unit or hydrobox. The following is a guide to viewing the main settings. Should you require more information please contact your installer or local Mitsubishi Electric dealer. Cooling mode is available for ERS series only. However, Cooling mode is not available when the indoor unit is connected to PUHZ-FRP.

F1 F2 F3 F4
E

12 15 14 11 1 17 2

3 16

Main screen

Letter Name

Function

A Screen

Screen in which all information is displayed

B Menu C Back D Confirm E Power/Holiday
F1-4 Function keys

Access to system settings for initial set up and modifications. Return to previous menu.
Used to select or save. (Enter key)
If system is switched off pressing once will turn system ON. Pressing again when system is switched on will enable Holiday Mode. Holding the button down for 3 seconds will turn the system off. (*1) Used to scroll through menu and adjust settings. Function is determined by the menu screen visible on screen A.

*1 When the system is switched off or the power supply is disconnected, the cylinder unit protection functions (e.g. freeze stat. function) will NOT operate. Please beware that without these safety functions enabled the cylinder unit may potentially become exposed to damage.

<Main screen icons>
Icon 1 Legionella
prevention 2 Heat pump

Description When this icon is displayed `Legionella prevention mode' is active.
`Heat pump' is running.

Defrosting

Emergency heating

`Quiet mode' is activated.

3 Electric heater When this icon is displayed the `Electric heaters'

(booster or immersion heater) are in use.

4 Target temperature

Target flow temperature Target room temperature

Compensation curve

5 OPTION

Pressing the function button below this icon will dis-

play the option screen.

Increase desired temperature.

Decrease desired temperature.

8 Z1 Z2

Pressing the function button below this icon switch-

es between Zone1 and Zone2.

Information

Pressing the function button below this icon displays

the information screen.

9 Space heating/

cooling mode

Heating mode Zone1 or Zone2

Cooling mode

Zone1 or Zone2

10 DHW mode

Normal or ECO mode

11 Holiday mode When this icon is displayed `Holiday mode' activated.

Timer

Prohibited

Server control

Stand-by

Stand-by (*2)

Stop

Operating

13 Current temperature

Current room temperature Current water temperature of DHW tank

The Menu button is locked or the switching of the

operation modes between DHW and Heating opera-

tions are disabled in the Option screen.(*3)

SD memory card is inserted. Normal operation.

SD memory card is inserted. Abnormal operation.

16 Buffer tank control

When this icon is displayed 'Buffer tank control' is active.

Smart grid ready

When this icon is displayed, 'Smart grid ready' is active.

*2 This unit is in Stand-by whilst other indoor unit(s) is in operation by priority.
*3 To lock or unlock the Menu, press the BACK and CONFIRM keys simultaneously for 3 seconds.

5 System Set Up

[Initial setting wizard]
When the main remote controller is switched on for the first time, the screen automatically goes to Language setting screen , Date/Time setting screen and Main settings menu screen in order. Enter the desired number using the function keys and press CONFIRM.
Note: <HEATER CAPACITY RESTRICTION> This setting restricts the booster heater capacity. It is NOT possible to change the setting after starting up. If you do not have any special requirements (such as building regulations) in your country, skip this setting (select "No").

� [Hot water (DHW/Legionella)] � [Heating]/[Cooling] � [Operation (ON/Prohibited/Timer)] � [Pump speed] � [Heat pump flow rate range] � [Mixing valve control] � [HEATER CAPACITY RESTRICTION]

Initial settings wizard

en
DHW SETTINGS Operation mode

Main Settings Menu
The main settings menu can be accessed by pressing the MENU button. To reduce the risk of untrained end users altering the settings accidentally there are two access levels to the main settings; and the service section menu is password protected.

User Level � Short press If the MENU button is pressed once for a short time the main settings will be displayed but without the edit function. This will enable the user to view current settings but NOT change the parameters.

Installer Level � Long press

If the MENU button is pressed down for 3 seconds the main settings will be dis-

played with all functionality available.

The color of

buttons is inverted, as per figure on right. <Fig. 5.7.1>

The following items can be viewed and/or edited (dependent on access level). � [Domestic Hot water (DHW)] � [Heating/Cooling] � [Schedule timer] � [Holiday mode] � [Initial settings] � [Service (Password protected)]

Skip Comfirm
Main menu Long Press
<Fig 5.7.1>

5 System Set Up

<Main Controller Menu Tree> Initial

Main screen

* Short press for 1 Zone system.

F1 *

Information

Option

F1 Forced DHW

F2 DHW

F3 Heating/Cooling

F4 Energy monitor

Main menu

Hot Water (DHW)

F1 DHW
F3 Legionella
F2 ( EDIT) DHW
Legionella F4 ( EDIT)

ON ( )/OFF
ON ( )/Prohibited ( )/Timer ( )
ON ( )/Prohibited ( )/Timer ( )
Consumed electrical energy
Delivered energy Normal/Eco Active/Non active DHW max. temp. DHW max. temp. drop DHW max. operation time DHW mode restriction DHW recharge Hot water temp. Frequency Start time Max. operation time Duration of max. temp.

Unrestricted access Installer only
Long press
en

F1 (Zone1)

Heating room temp.( ) / Heating flow temp.( ) / Heating compensation curve( ) / Cooling flow temp.

Heating/Cooling

F2 (Zone2) F3 (PREVIEW) F4 ( EDIT)

Heating room temp.( ) / Heating flow temp.( ) / Heating compensation curve( ) / Cooling flow temp.

Compensation curve preview
F1
Compensation curve edit Zone1/2 select

Zone1

F2 F3 F4

Curve parameters Adjustment

Zone2

F2 F3 F4

Curve parameters Adjustment

Schedule2 period preview screen
Schedule timer

F4 ( EDIT)

Schedule2 period setting screen1 F2 F3
F1
Zone1/2 select
Heating

Term setting

F4 Schedule timer preview Day

Zone1

select

F4 Schedule timer preview Zone2

Day select

Schedule1/2 select

Schedule1

F1
Zone1/2 select
Cooling

F4 Schedule timer preview Zone1
F4 Schedule timer preview Zone2

F4 Schedule timer preview

DHW
F1
Zone1/2 select
Heating

F4 Schedule timer preview Zone1
F4 Schedule timer preview Zone2

Day select
Day select
Day select
Day select
Day select

Holiday mode

F3 ( EDIT)
Date/Time

Schedule2

F1
Zone1/2 select
Cooling

F4 Schedule timer preview Zone1
F4 Schedule timer preview Zone2

F4 Schedule timer preview

DHW

Active/Non active

Heating/

Active/Non active

Cooling Holiday mode setting

F1 F2
Zone1/2 select

Zone1 Zone2

yyyy/mm/dd/hh:mm

Heating room temp.
Heating flow temp. Cooling flow temp. Heating room temp.
Heating flow temp. Cooling flow temp.

Day select
Day select
Day select

save
Time select Temp.setting save
Time select Temp.setting save
Time select Temp.setting save
Time select Temp.setting save

Time select
save
Time select Temp.setting
save

Time select

Temp.setting

save

Time select Temp.setting
save

Time select

save

Language

EN/FR/DE/SV/ES/IT/DA/NL/FI/NO/PT/BG/PL/CZ/RU/TR/SL

Summer time

OFF/ON

Temp. display

OFF/Room/Tank/Room&Tank

Contact number

Initial settings
<Continued to next page.>

Time display �C/�F
Room sensor settings

hh:mm/hh:mm AM/AM hh:mm �C/�F Room RC zone select
F1 F2
Sensor setting Zone1/2 select

Zone1 Zone2

Sensor setting Select Time/Zone Sensor setting Select Time/Zone

TH1/Main RC/ Room RC1-8/ "Time/ Zone" Time setting Sensor setting
TH1/Main RC/ Room RC1-8/ "Time/ Zone" Time setting Sensor setting

5 System Set Up

<Continued from the previous page.> <Main Controller Menu Tree>
Initial

Main screen Menu

Main menu

Service
Password protected

Manual operation Function settings Thermistor adjustment
Auxiliary settings
Heat source setting Pump speed Heat pump settings Operation settings

Unrestricted access Installer only
Long press

Economy settings for pump

ON/OFF Delay

Electric heater (Heating)

ON/OFF Delay

Electric heater (DHW)

ON/OFF (Booster heater/Immersion heater) Delay

Mixing valve control

Running Interval

Flow sensor

Minimum Maximum

Analog output

Priority Interval

Standard (Heat pump & electric heater)/Heater (Electric heater only)/ Boiler/Hybrid (Heat pump & heater/Boiler)

Heat pump flow rate range

Quiet mode

Heating operation

Flow temp.range

Minimum Maximum

Minimum.temp. Maximum.temp.

Room temp.control

H/P thermo diff.adjust

Freeze stat function

Flow t. Ambient

Mode Interval
ON/OFF Lower limit Upper limit

Simultaneous operation

ON/OFF Ambient

Cold weather function Boiler settings *1

ON/OFF Ambient Hybrid settings
Intelligent settings

Outdoor ambient temp.

Priority Energy price

Ambient/ Cost /CO2
Electricity
Boiler

Schedule CO2 emission

Electric Boiler Heat pump capacity

Heat source

Boiler efficiency Booster heater 1 capacity
Booster heater 2 capacity

Smart grid ready
F1 Floor dry up function
(For more details,
refer to Page 26. F4

(

DHW Heating Cooling
Pump cycles ON/OFF Target temp.
Flow temp. (Increase) Flow temp. (Decrease)

ON/OFF Target temp. ON/OFF Target temp. ON/OFF Target temp.
ON/OFF(Heating) ON/OFF(Cooling) Interval
Start & Finish Max. temp. Max. temp. period Temp. increase step Increase interval
Temp. decrease step Decrease interval

Summer mode

ON/OFF

Summer mode

Ambient temp. Judgement time

Ambient(Heating ON) Ambient(Heating OFF) Time(Heating ON) Time(Heating OFF)

Forced heating ON

Ambient

Water flow control

ON/OFF

*1 For more details, refer to the installation manual of PAC-TH012HT-(L)E.

5 System Set Up

<Continued from the previous page.> <Main Controller Menu Tree>
Initial

Main screen Menu

Main menu

Service
Password protected

Unrestricted access Installer only
Long press

Energy monitor settings

Electric heater capacity
Water pump input Delivered energy adjustment Electric energy meter

Booster heater 1 capacity Booster heater 2 capacity Immersion heater Analog output
Pump 1 Pump 2 Pump 3 Pump 4

Heat meter

External input settings Thermo ON output

Demand control (IN4) Outdoor thermostat (IN5) Zone1/Zone2/Zone1&2

OFF (Heat source)/Boiler Heater/Boiler

Commissioning wizard

Running information

Thermistor reading

Summary of settings

Error history

Password protection Manual reset

Main controller FTC

Yes/No Yes/No

SD card

SD Main RC Main RC SD

F1 F2 F3 F1 F2 F3

Select download data Select upload data

Domestic Hot Water (DHW)/Legionella Prevention
The domestic hot water and legionella prevention menus control the operation of DHW tank heat ups.

<DHW mode settings> 1. Highlight the hot water icon and press CONFIRM. 2. Use button F1 to switch between Normal and ECO heating modes. 3. To edit the mode, press down the MENU button for 3 seconds, then select "hot
water". 4. Press F2 key to display the Hot Water (DHW) SETTING menu. 5. Use F2 and F3 keys to scroll through the menu selecting each component in
turn by pressing CONFIRM. See the table below for description of each setting. 6. Enter the desired number using the function keys and press CONFIRM.

Menu subtitle

Function

Range Unit

DHW max. temp.

Desired temperature of stored hot water

40 - 60 �C

DHW max. temp. drop Difference in temperature between DHW max. temp. and the temperature at which DHW mode restarts 5 - 30 * �C

DHW max. operation time Max. time allowed for stored water heating DHW mode

30 - 120 min

DHW mode restriction The time period after DHW mode when space heating has priority over DHW mode temporarily pre-

venting further stored water heating

30 - 120 min

(Only when DHW max. operation time has passed.)

* When the DHW max. temp is set over 55�C, the temperature at which DHW mode restarts must be less than 50�C to protect the device.

Default value 50 10 60
30

<Eco mode> DHW mode can run in either `Normal' or `Eco' mode. Normal mode will heat the water in the DHW tank more quickly using the full power of the heat pump. Eco mode takes a little longer to heat the water in the DHW tank but the energy used is reduced. This is because heat pump operation is restricted using signals from the FTC based on measured DHW tank temperature.
Note: The actual energy saved in Eco mode will vary according to outdoor ambient temperature.
<[DHW recharge]> Select the amount of DHW. If you need much hot water, select LARGE, but increase operating costs.
Return to the DHW/legionella prevention menu.

5 System Set Up

Legionella Prevention Mode settings (LP mode)
1. Use button F3 to choose legionella mode active YES/NO. 2. To edit the legionella function, press down the MENU button for 3 seconds
and select "hot water", then press F4 key. 3. Use F1 and F2 keys to scroll through the menu selecting each subtitle in turn
by pressing CONFIRM. See the table below for description of each setting. 4. Enter the desired number using the function keys and press CONFIRM.
During Legionella Prevention Mode the temperature of the stored water is increased above 60�C to inhibit legionella bacteria growth. It is strongly recommended that this is done at regular intervals. Please check local regulations for the recommended frequency of heat ups.

Please note that LP mode uses the assistance of electric heaters to supplement the energy input of the heat pump. Heating water for long periods of time is not efficient and will increase running costs. The installer should give careful consideration to the necessity of legionella prevention treatment whilst not wasting energy by heating the stored water for excessive time periods. The end user should understand the importance of this feature. ALWAYS COMPLY WITH LOCAL AND NATIONAL GUIDANCE FOR YOUR COUNTRY REGARDING LEGIONELLA PREVENTION.

Note: When failures occur on the hydrobox, the LP mode may not function normally.

Menu subtitle
Hot water temp. Frequency Start time Max. operation time
en Duration of max. temp.

Function
Desired temp. of stored hot water Time between LP mode DHW tank heat ups Time when LP mode will begin Maximum time allowed for LP mode DHW tank heat The time period after LP mode desired water temp. has been reached

Range
60 - 70 1 - 30 0:00 - 23:00 1 - 5 1 - 120

Unit
�C day
hour min

Default value
65 15 03:00 3 30

[Initial Settings]
From the Initial settings menu the installer can set the following. � [Date/Time] *Be sure to set it to the local standard time. � [Language] � [Summer time] � [Temp. display] � [Contact number] � [Time display] � [�C/�F] � [Room sensor settings]
Follow the procedure described in General Operation for the set up operation. <[Room sensor settings]> For room sensor settings it is important to choose the correct room sensor depending on the heating mode the system will operate in.
Time/Zone schedule setting screen

Menu subtitle Description

Room RC zone select

When 2-zone temperature control is active and wireless remote controllers are available, from Room RC zone select screen, se-

lect zone no. to assign to each main remote controller.

Sensor setting

From sensor setting screen, select a room sensor to be used for monitoring the room temperature from Zone1 and Zone2 separately.

Control option Corresponding initial settings room sensor

(Website manual)

Zone1

Zone2

Room RC 1-8 (one each for Zone1 and Zone2)

TH1

Main remote controller

When different

room sensors are used according to

Time/ Zone*2

the time schedule

*1. Not specified (if a locally-supplied room thermostat is used) Room RC 1-8 (one each for Zone1 and Zone2) (if a wireless remote controller is used as a room thermostat)
*2. From sensor setting screen, select Time/Zone to make it possible to use different room sensors according to the time schedule set in the Select Time/ Zone menu. The room sensors can be switched up to 4 times within 24 hours.

[Service] Menu
The service menu provides functions for use by installer or service engineer. It is NOT intended the home owner alters settings within this menu. It is for this reason password protection is required to prevent unauthorised access to the service settings.
The factory default password is "0000". Follow the procedure described in General Operation for the set up operation.
Many functions can not be set whilst the indoor unit is running. The installer should turn off the unit before trying to set these functions. If the installer attempts to change the settings whilst the unit is running the main remote controller will display a reminder message prompting the installer to stop operation before continuing. By selecting "Yes" the unit will cease operation.

<[Manual operation]> During the filling of the system the primary circuit circulation pump and 3-way valve can be manually overridden using manual operation mode. When manual operation is selected a small timer icon appears in the screen. When selected, this function will only remain in manual operation for a maximum of 2 hours. This is to prevent accidental permanent override of the FTC.

Example Pressing F3 button will switch manual operation mode ON for the main 3-way valve. When filling of the DHW tank is complete the installer should access this menu again and press F3 to deactivate manual operation of the part. Alternatively after 2 hours manual operation mode will no longer be active and FTC can resume control of the cylinder unit.

Selected

Running

Error indication

Manual operation menu screen

5 System Set Up

Manual operation and heat source setting can not be selected if the system is running. A screen will be displayed asking the installer to stop the system before these modes can be activated. The system automatically stops 2 hours after last operation.

Target flow temp. (�C)
(g) 45
40

(h) (d) (e)

<[Floor dry up function]> The Floor dry up function automatically changes the target hot water temperature in stages to gradually dry concrete when this particular type of underfloor heating system is installed.
Upon completion of the operation the system stops all the operations except the Freeze stat. operation. For Floor dry up function, the target flow temp. of Zone1 is the same as that of Zone2.

35 (c) (b)
30 (f)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Days
� This function is not available when a PUHZ-FRP outdoor unit is connected. � Disconnect wiring to external inputs of room thermostat, demand control, and
outdoor thermostat, or the target flow temperature may not be maintained.

Functions

Symbol Description

Option/Range Unit Default

Floor dry up function

Set the function to ON and power on the controller, and the dry up heating operation

system using will start.

the

main

remote

On/Off

-- Off

Flow temp.

Flow temp. increase step

b Sets the increase step of the target flow temperature.

+1 to +10 �C +5

(increase)

Increase interval

c Sets the period for which the same target flow temperature is maintained. 1 to 7

day 2

Flow temp.

Flow temp. decrease step

d Sets the decrease step of the target flow temperature.

-1 to -10 �C -5

(decrease)

Decrease interval

e Sets the period for which the same target flow temperature is maintained. 1 to 7

day 2

Start & Finish

f Sets the target flow temperature at the start and the finish of the operation. 20 to 60

�C 30

Target temperature Max. target temp. Max. temp. period

g Sets the maximum target flow temperature.

20 to 60

Sets the tained.

period

for

which

the

maximum

target

flow

temperature

main-

1 to 20

�C 45 day 5

<[Password protection]> Password protection is available to prevent unauthorised access to the service menu by untrained persons.

Resetting the password If you forget the password you entered, or have to service a unit somebody else installed, you can reset the password to the factory default of 0000.
1. From the main settings menu scroll down the functions until Service Menu is highlighted.
2. Press CONFIRM. 3. You will be prompted to enter a password. 4. Hold down buttons F3 and F4 together for 3 seconds 5. You will be asked if you wish to continue and reset the password to default set-
ting. 6. To reset press button F3. 7. The password is now reset to 0000.
<[Manual reset]> Should you wish to restore the factory settings at any time you should use the manual reset function. Please note this will reset ALL functions to the factory default settings.

Password input screen Password verify screen

6 Commissioning
Pre-commissioning exercises- potable/DHW circuit
Initial fill procedure: Ensure all pipe joints and fittings are tight and secure. Open the most distant DHW tap/outlet. Slowly/gradually open the mains water supply to begin filling unit and DHW pipework. Allow most distant tap to run free and release/purge residual air from installation. Close tap/outlet to retain fully charged system. Note: When an immersion heater is fitted, do NOT energise the heater until the DHW tank is full of water. Also do NOT energise any immersion heater if any
sterilisation chemicals remain in the DHW tank as this will cause premature failure of the heater.
Initial flush procedure: Energise system to heat-up cylinder unit contents to a temperature of approx. 30 - 40�C. Flush/drain the water contents to remove any residue/impurities resulting from the installation works. Use the cylinder unit drain cock to safely discharge the warmed water to drain via a suitable hose. On completion, close drain cock, re-fill system and resume system commissioning.

7 Service and Maintenance

Error Codes

Code Error

Action

Circulation water temperature overheat protection

Flow rate may be reduced. Check for; � Water leakage � Strainer blockage � Water circulation pump function (Error code may display during filling of
primary circuit, complete filling and reset error code.)

DHW tank water temperature overheat protection

Check the immersion heater and it's contactor.

Indoor unit temperature thermistor (THW1, THW2, THW5A, THW5B, THW6, THW7, THW8, THW9) failure

Check resistance across the thermistor.

Circulation water freeze protection

See Action for L3.

Heating operation error

Check and re-attach any thermistors that may have become dislodged.

Low primary circuit flow rate detected by flow sensor or flow switch (flow switches 1, 2, 3)

See Action for L3. If the flow sensor or flow switch itself does not work, replace it. Caution: The pump valves may be hot, please take care.

LA
en LB

Pressure sensor failure High pressure protection

Check pressure sensor cable for damage or loose connections.
� Flow rate of the heating circuit may be reduced. Check water circuit. � Plate heat exchanger may be clogged. Check the plate heat exchanger. � Outdoor unit failure. Refer to outdoor unit service manual.
Check if the setting temperature of the Boiler for heating exceeds the restriction. (See the manual of the thermistors "PAC-TH012HT-E")

Boiler circulation water temperature overheat protection

Flow rate of the heating circuit from the boiler may be reduced. Check for � water leakage, � strainer blockage � water circulation pump function.

Boiler temperature thermistor (THWB1) failure

Check resistance across the thermistor.

Boiler operation error

See Action for L8. Check the status of the boiler.

Flow sensor failure

Check flow sensor cable for damage or loose connections.

Boiler circulation water freeze protection

DHW operation error (type of external plate HEX)

Setting errors of DIP switches on FTC control board

Out of water flow rate range for outdoor heat pump unit

Thermistor (Room temp.) (TH1) failure

Flow rate of the heating circuit from the boiler may be reduced. Check for � water leakage � strainer blockage � water circulation pump function.
� Check for disconnection of DHW tank water lower temp. thermistor (THW5B). � Flow rate of the sanitary circuit may be reduced. � Check for water circulation pump function. (primary / sanitary)
For boiler operation, check that DIP SW1-1 is set to ON (With Boiler) and DIP SW2-6 is set to ON (With Mixing Tank). For 2-zone temperature control, check DIP SW2-7 is set to ON (2-zone) and DIP SW2-6 is set to ON (With Mixing Tank).
Check the installation Table 4.3.1 Check remote controller settings (Service menu / heat pump flow rate range) See Action for L3.
Check resistance across the thermistor.

Thermistor (Ref. liquid temp.) (TH2) failure

Check resistance across the thermistor.

Anti-freeze protection of plate heat exchanger

See Action for L3. Check for correct amount of refrigerant.

Communication failure between FTC and wireless receiver

Check connection cable for damage or loose connections.

J1 - J8 Communication failure between wireless receiver and wireless remote controller

Check wireless remote controller's battery is not flat. Check the pairing between wireless receiver to wireless remote controller. Test the wireless communication. (See the manual of wireless system)

E0 - E5 Communication failure between main remote controller and FTC

Check connection cable for damage or loose connections.

E6 - EF Communication failure between FTC and outdoor unit

Check that the outdoor unit has not been turned off. Check connection cable for damage or loose connections. Refer to outdoor unit service manual.

Outdoor unit receives no signal from indoor unit.

Check both units are switched on. Check connection cable for damage or loose connections. Refer to outdoor unit service manual.

EE U*, F*

Combination error between FTC and outdoor unit Outdoor unit failure

Check combination of FTC and outdoor unit. Refer to outdoor unit service manual.

M-NET communication error

Refer to outdoor unit service manual.

Note: To cancel error codes please switch system off (Press button F4(RESET) on main remote controller).

7 Service and Maintenance

Annual Maintenance
It is essential that the cylinder unit is serviced at least once a year by a qualified individual. Any required parts should be purchased from Mitsubishi Electric. NEVER bypass safety devices or operate the unit without them being fully operational. For more details, refer to service handbook.

Notes Within the first couple of months of installation, remove and clean the cylinder unit's strainer plus any additional filter items that are fitted external to the
cylinder unit. This is especially important when installing on an old/existing pipe work system. The PRV valve and T&P valve (No. 8, 20 and 21 on Figure 3.1) should be checked annually by turning the knob manually so that the medium is discharged,
thus cleaning the seal seat.

In addition to annual servicing it is necessary to replace or inspect some parts after a certain period of system operation. Please see tables below for detailed instructions. Replacement and inspection of parts should always be done by a competent person with relevant training and qualifications.

Parts which require regular replacement

Parts Pressure relief valve (PRV) Manometer Inlet control group (ICG)*

Replace every Possible failures

6 years

Water leakage

* OPTIONAL PARTS for UK

Parts which require regular inspection

Parts

Check every

Possible failures

Pressure relief valve (3bar) 1 year

PRV would be fixed and

Temperature and pressure ( t u r n i n g t h e k n o b expansion vessel would

relief valve

manually)

burst

Immersion heater
Water circulation pump (Primary circuit)

Earth leakage causing

2 years

circuit breaker to activate

(Heater is always OFF)

20,000 hrs (3 years)

Water circulation pump failure

Parts which must NOT be re-used when servicing * O-ring * Gasket
Note: � Always replace the gasket for pump with a new one at each regular main-
tenance (every 20,000 hours of use or every 3 years).

<Draining the cylinder unit and its sanitary heating circuit (local)> WARNING: DRAINED WATER MAY BE VERY HOT 1. Before attempting to drain the cylinder unit isolate from the electrical supply to prevent the immersion and booster heaters burning out. 2. Isolate cold water feed to DHW tank. 3. Open a hot water tap to allow draining without creating a vacuum. 4. Attach a hose to the DHW tank drain cocks (No. 22 and 23 on Figure 7.1). The hose should be able to withstand heat as the draining water could be very hot. The hose
should drain to a place lower than the DHW tank bottom to encourage siphoning. Begin draining by opening drain cock. 5. When the DHW tank is drained close drain cock and hot tap. 6. For primary circuit, attach hose to water circuit drain cocks (No. 6 on Figure 3.1). The hose should be able to withstand heat as the draining water could be very hot. The
hose should drain to a place lower than the drain cock to encourage siphoning. Open the pump valves and the strainer valves. 7. Water remains in the strainer still after the cylinder unit was drained.
Drain the strainer by removing the strainer cover.

7 Service and Maintenance

Engineers Forms

Should settings be changed from default, please enter and record new setting in `Field Setting' column. This will ease resetting in the future should the system use change or the circuit board need to be replaced.
Commissioning/Field settings record sheet

Main remote controller screen Main
Option Setting DHW

Zone1 heating room temp. Zone2 heating room temp. *1 Zone1 heating flow temp. Zone2 heating flow temp. *2 Zone1 cooling flow temp. *3 Zone2 cooling flow temp. *3 Zone1 heating compensation curve Zone2 heating compensation curve *2 Holiday mode Forced DHW operation DHW Heating/Cooling *3 Energy monitor Operation mode DHW max. temp. DHW temp. drop DHW max. operation time DHW mode restriction

Parameters

Default setting

10�C to 30�C

20�C

10�C to 30�C

20�C

20�C to 60�C

45�C

20�C to 60�C

35�C

5�C to 25�C

15�C

5�C to 25�C

20�C

-9�C to + 9�C

0�C

-9�C to + 9�C

0�C

Active/Non active/Set time

On/Off

On/Off/Timer

Consumed electrical energy/Delivered energy

Normal/Eco *4

Normal

40�C to 60�C *5

50�C

5�C to 30�C

10�C

30 to 120 min

60 min

30 to 120 min

30 min

DHW recharge

Large/Standard

Standard

Legionella prevention

Active

Yes/No

Yes

Hot water temp.

60�C to 70�C *5

65�C

Frequency

1 to 30 days

15 days

Start time

00:00 to 23:00

03:00

Max. operation time

1 to 5 hours

3 hours

Duration of maximum temp.

1 to 120 min

30 min

Heating/Cooling *3

Zone1 operation mode

Heating room temp./ Heating flow temp./ Heating Room temp.

compensation curve/ Cooling flow temp.

Zone2 operation mode *2

Heating room temp./ Heating flow temp./ Heating Compensation

compensation curve/ Cooling flow temp.

curve

Compensation Hi flow temp. set Zone1 outdoor ambient temp.

-30�C to +33�C *6

-15�C

curve

point

Zone1 flow temp. Zone2 outdoor ambient temp. *2

20�C to 60�C -30�C to +33�C *6

50�C -15�C

Zone2 flow temp. *2

20�C to 60�C

40�C

Lo flow temp. set Zone1 outdoor ambient temp.

-28�C to +35�C *7

35�C

point

Zone1 flow temp.

20�C to 60�C

25�C

Zone2 outdoor ambient temp. *2

-28�C to +35�C *7

35�C

Zone2 flow temp. *2

20�C to 60�C

25�C

Adjust

Zone1 outdoor ambient temp.

-29�C to +34�C *8

Zone1 flow temp.

20�C to 60�C

Zone2 outdoor ambient temp. *2

-29�C to +34�C *8

Zone2 flow temp. *2

20�C to 60�C

Holiday

DHW

Active/Non active

Non active

Heating/Cooling *3

Active/Non active

Active

Zone1 heating room temp.

10�C to 30�C

15�C

Zone2 heating room temp. *1

10�C to 30�C

15�C

Zone1 heating flow temp.

20�C to 60�C

35�C

Zone2 heating flow temp. *2

20�C to 60�C

25�C

Zone1 cooling flow temp. *3

5�C to 25�C

25�C

Zone2 cooling flow temp. *3

5�C to 25�C

25�C

Initial settings

Language

EN/FR/DE/SV/ES/IT/DA/NL/FI/NO/PT/BG/PL/ EN

�C/�F

CZ/RU/TR/SL

�C/�F

�C

Summer time

On/Off

Off

Temp. display

Room/DHW tank/Room&DHW tank /Off

Off

Time display

hh:mm/hh:mm AM/AM hh:mm

hh:mm

Room sensor settings for Zone1

TH1/Main RC/Room RC1-8/"Time/Zone"

TH1

Room sensor settings for Zone2 *2

TH1/Main RC/Room RC1-8/"Time/Zone"

TH1

Room RC zone select *2

Zone1/Zone2

Zone1

Service menu

Thermistor

THW1

-10�C to +10�C

0�C

adjustment

THW2

-10�C to +10�C

0�C

THW5A

-10�C to +10�C

0�C

THW5B

-10�C to +10�C

0�C

THW6

-10�C to +10�C

0�C

THW7

-10�C to +10�C

0�C

THW8

-10�C to +10�C

0�C

THW9

-10�C to +10�C

0�C

THW10

-10�C to +10�C

0�C

THWB1

-10�C to +10�C

0�C

Auxiliary settings Economy settings for On/Off *9

pump. Electric heater

Delay (3 to 60 min) Space heating: On (used)/Off (not used)

10 min On

(Heating) Electric heater (DHW)
Mixing valve control
Flow sensor *10
Analog output

Electric heater delay timer (5 to 180 min)

30 min

Booster heater DHW: On (used)/Off (not used) On

Immersion heater DHW: On (used)/Off (not used) On

Electric heater delay timer (15 to 30 min)

15 min

Running (10 to 240 sec)

120 sec

Interval (1 to 30 min)

2 min

Minimum (0 to 100 L/min)

5 L/min

Maximum (0 to 100 L/min)

100 L/min

Interval (1 to 30 min)

5 min

Priority (Normal/High)

Normal

Field setting Notes

(Continued to next page.)
29

7 Service and Maintenance

Engineers Forms

Commissioning/Field settings record sheet (continued from the previous page)

Main remote controller screen

Parameters

Default setting

Field setting

Notes

Setting Service menu Pump speed

DHW

Pump speed (1 to 5)

Heating/Cooling

Pump speed (1 to 5)

Heat source setting

Standard/Heater/Boiler/Hybrid *11

Standard

Heat pump setting

Heat pump flow rate range Minimum (0 to 100 L/min)

5 L/min

Maximum (0 to 100 L/min)

100 L/min

Quiet mode

Day (Mon to Sun)

Time

0:00 to 23:45

Quiet level (Normal/ Level1/ Level2)

Normal

Operation Heating operation Flow temp.range

settings

*13

Minimum.temp. (20 to 45�C) Maximum.temp. (35 to 60�C)

30�C 50�C

Room temp.control Mode (Normal/Fast)

Normal

*14

Interval (10 to 60 min)

10 min

Heat pump thermo On/Off *9

diff.adjust

Lower limit (-9 to -1�C)

-5�C

Upper limit (+3 to +5�C)

5�C

Freeze stat function *15

Outdoor ambient temp. (3 to 20�C) / **

5�C

Simultaneous operation (DHW/Heating) On/Off *9 Outdoor ambient temp. (-30 to +10�C) *6

Off -15�C

Cold weather function

On/Off *9

Off

Outdoor ambient temp. (-30 to -10�C) *6

-15�C

Boiler operation

Hybrid settings Outdoor ambient temp.

-15�C

(-30 to +10�C) *6

Priority mode (Ambient/Cost/

Ambient

CO2) *16 Outdoor ambient temp. rise

+3�C

(+1 to +5�C)

Intelligent set- Energy Electricity

0.5 */kWh

tings

price (0.001 to 999 */kWh)

*17

Boiler

0.5 */kWh

(0.001 to 999 */kWh)

CO2 emission

Electricity (0.001 to 999 kg -CO2/ kWh)

0.5 kg -CO2/kWh

Boiler

0.5 kg -CO2/kWh

(0.001 to 999 kg -CO2/

kWh)

Heat Heat pump capacity 11.2 kW

source (1 to 40 kW)

Boiler efficiency

80%

(25 to 150%)

Booster heater 1

2 kW

capacity

(0 to 30 kW)

Booster heater 2

4 kW

capacity

(0 to 30 kW)

Smart grid ready

DHW

On/Off

Off

Target temp (+1 to +20�C) / -- (Non active)

Heating

On/Off

Off

Target temp. Switch-on recommendation (20 to 60�C) 50�C

Switch-on command (20 to 60�C) 55�C

Cooling

On/Off

Off

Target temp. Switch-on recommendation (5 to 25�C) 15�C

Switch-on command (5 to 25�C) 10�C

Pump cycles

Heating (On/Off)

Cooling (On/Off)

Interval (10 to 120 min)

10 min

Floor dry up function

On/Off *9

Off

Target temp. Start&Finish (20 to 60�C)

30�C

Max. temp. (20 to 60�C)

45�C

Max. temp. period (1 to 20 days) 5 days

Flow temp.

Temp. increase step (+1 to +10�C) +5�C

(Increase)

Increase interval (1 to 7 days) 2 days

Flow temp. (Decrease)

Temp. decrease step (-1 to -10�C) -5�C Decrease interval (1 to 7 days) 2 days

Summer mode

On/Off Outdoor ambient temp.

Heating ON (4 to 19�C) Heating OFF (5 to 20�C)

Off 10�C 15�C

Judgement time

Heating ON (1 to 48 hours) Heating OFF (1 to 48 hours)

6 hours 6 hours

Forced heating ON (-30 to 10�C)

5�C

Water flow control

On/Off

Off

(Continued to next page.)
30

7 Service and Maintenance

Engineers Forms

Commissioning/Field settings record sheet (continued from the previous page)

Main remote controller screen

Parameters

Service menu

Energy monitor settings

Electric heater capacity

Booster heater 1 capacity Booster heater 2

0 to 30 kW 0 to 30 kW

capacity

Immersion heater 0 to 30 kW

capacity

Analog output

0 to 30 kW

Delivered energy adjustment Water pump input Pump 1

-50 to +50% 0 to 200 W or ***(factory fitted pump)

Pump 2

0 to 200 W

Pump 3

0 to 200 W

Pump 4

0 to 200 W

Electric energy meter *12

0.1/1/10/100/1000 pulse/kWh

Heat meter *12

0.1/1/10/100/1000 pulse/kWh

External in- Demand control (IN4) put settings

Heat source OFF/Boiler operation

Outdoor thermostat (IN5)

Heater operation/Boiler operation

Default setting

Field setting

Notes

2 kW

4 kW

0 kW

0 kW 0% *** 0 W 0 W 72 W 1000 pulse/kWh 1000 pulse/kWh Boiler operation Boiler operation

Thermo ON output

Zone1/Zone2/Zone1&2

Zone1&2

*1 The settings related to Zone2 can be switched only when 2-zone temperature control or 2-Zone valve ON/OFF control is active. *2 The settings related to Zone2 can be switched only when 2-zone temperature control is enabled (when DIP SW2-6 and SW 2-7 are ON). *3 Cooling mode settings are available for ER model only. *4 When the cylinder unit is connected with a PUMY-P outdoor unit, the mode is fixed to "Normal". *5 For the model without both booster and immersion heater, it may not reach the set temperature depending on the outside ambient temperature. *6 The lower limit is -15�C depending on the connected outdoor unit. *7 The lower limit is -13�C depending on the connected outdoor unit. *8 The lower limit is -14�C depending on the connected outdoor unit. *9 On: the function is active; Off: the function is inactive. *10 Do not change the setting since it is set according to the specification of flow sensor attached to the cylinder unit. *11 When DIP SW1-1 is set to OFF "WITHOUT Boiler" or SW2-6 is set to OFF "WITHOUT Mixing tank", neither Boiler nor Hybrid can be selected. *12 The default setting is 1 pulse/kWh depending on the connected indoor unit. *13 Valid only when operating in Heating room temperature. *14 When DIP SW5-2 is set to OFF, the function is active. *15 If asterisk (**) is chosen freeze stat function is deactivated. (i.e. primary water freeze risk) *16 When the cylinder unit is connected with a PUMY-P outdoor unit, the mode is fixed to "Ambient". *17 "*" of "*/kWh" represents currency unit (e.g. or � or the like)

EC DECLARATION OF CONFORMITY EG-KONFORMIT�TSERKL�RUNG D�CLARATION DE CONFORMIT� CE EG-CONFORMITEITSVERKLARING DECLARACI�N DE CONFORMIDAD CE DICHIARAZIONE DI CONFORMIT� CE

DECLARA��O DE CONFORMIDADE CE
EU-OVERENSSTEMMELSESERKL�RING
EG-DEKLARATION OM �VERENSST�MMELSE EC DEKLARACJA ZGODNOCI WE

CE-ERKL�RING OM SAMSVAR
EY-VAATIMUSTENMUKAISUUSVAKUUTUS ES PROHL�SEN� O SHOD VYHL�SENIE O ZHODE ES EK MEGFELELS�GI NYILATKOZAT IZJAVA O SKLADNOSTI ES

DECLARAIE DE CONFORMITATE CE E� VASTAVUSDEKLARATSIOON EK ATBILSTBAS DEKLARCIJA EB ATITIKTIES DEKLARACIJA
EC IZJAVA O SUKLADNOSTI
EZ IZJAVA O USAGLASENOSTI

MITSUBISHI ELECTRIC AIR CONDITIONING SYSTEMS EUROPE LTD. NETTLEHILL ROAD, HOUSTOUN INDUSTRIAL ESTATE, LIVINGSTON, EH54 5EQ, SCOTLAND, UNITED KINGDOM
hereby declares under its sole responsibility that the heating system components described below for use in residential, commercial and light-industrial environments: erkl�rt hiermit auf seine alleinige Verantwortung, dass die unten beschriebenen Zubeh�rteile f�r das Heizungs-System zur Benutzung im h�uslichen, kommerziellen und leicht-industriellen Umfeld: d�clare par la pr�sente et sous son enti�re responsabilit� que les composants du syst�me de chauffage d�crits ci-dessous pour l'utilisation dans des environnements r�sidentiels, commerciaux et d'industrie l�g�re : verklaart hierbij als enige verantwoordelijke dat de componenten van het verwarmingssteem die hieronder worden beschreven, bedoeld zijn voor gebruik in woonomgevingen en in commerci�le en licht industri�le omgevingen: declara por la presente bajo su responsabilidad exclusiva que los componentes del sistema de calefacci�n descritos a continuaci�n para su uso en zonas residenciales, comerciales y para la industria ligera: con la presente dichiara, sotto la sua esclusiva responsabilit�, che i componenti dell'impianto di riscaldamento descritto di seguito, destinato all'uso in ambienti residenziali, commerciali e industriali: , . atrav�s da presente declara sob sua �nica responsabilidade que os componentes do sistema de aquecimento abaixo descritos para uso residencial, comercial e de ind�stria ligeira: erkl�rer hermed under eneansvar, at de herunder beskrevne komponenter til opvarmning til brug i privat boligbyggeri, erhvervsomr�der og inden for let industri: intygar h�rmed att uppv�rmningssystemkomponenterna som beskrivs nedan �r f�r anv�ndning i bost�der, kommersiella milj�er och l�tt industri: , - , : niniejszym owiadcza na swoj wylczn odpowiedzialno, e klimatyzatory i pompy ciepla opisane poniej, s przeznaczone do zastosowa w rodowisku mieszkalnym, handlowym i lekko uprzemyslowionym: erkl�rer hermed som sitt ansvar, ene og alene, at komponentene i varmesystemet som beskrives nedenfor og som er beregnet for bruk i bolig-, forretnings- og lettindustrimilj�er: vakuuttaa t�ten asiasta yksin vastuussa, ett� alla kuvatut l�mmitysj�rjestelm�n osat, jotka on tarkoitettu k�ytett�viksi asuin-, toimisto- ja kevyen teollisuuden ymp�rist�iss�: t�mto na vlastn� odpovdnost prohlasuje, ze n�ze popsan� klimatizacn� jednotky a tepeln� cerpadla pro pouzit� v obytn�ch prosted�ch, komercn�ch prosted�ch a prosted�ch lehk�ho prmyslu: t�mto vyhlasuje na vlastn� zodpovednos, ze komponenty vykurovacieho syst�mu op�san� nizsie pre pouzitie v obytn�ch, komercn�ch a ahk�ch priemyseln�ch oblastiach: ezennel kiz�r�lagos felelss�ggel kijelenti, hogy az al�bbiakban le�rt, lak�-, kereskedelmi �s k�nnyipari k�rnyezetben haszn�lhat� ftrendszer alkatr�szei: s tem izrecno izjavljamo, da so spodaj opisane komponente ogrevalnega sistema za uporabo v stanovanjskih, poslovnih in lahkoindustrijskih okoljih: Prin prezentul document, compania declar pe propria rspundere c piesele sistemului de �nclzire descrise mai jos sunt potrivite pentru utilizarea �n medii rezideniale, comerciale i uor industriale: kinnitab oma ainuvastutusel, et allpool kirjeldatud k�ttes�steemi komponendid on m�eldud kasutamiseks elu-, kaubandus- ja kerget��stuskeskkonnas: ar so pilnb atbild par to, ka tlk apraksttie apsildes sistmas komponenti, kas izmantojami dzvojams, komercils un viegls industrils vids: prisiimdamas vis atsakomyb pareiskia, kad zemiau aprasyti sildymo sistemos komponentai skirti naudoti gyvenamojoje, komercinje ir lengvosios pramons aplinkose: ovime izjavljuje pod iskljucivo svojom odgovornosu da dolje opisane komponente sustava za grijanje za upotrebu u stambenim, komercijalnim i lakoindustrijskim okruzenjima: ovim izjavljujemo pod svojom iskljucivom odgovornosu da su opisane komponente sistema grejanja za upotrebu u stambenim, poslovnim i lakim industrijskim okruzenjima:
MITSUBISHI ELECTRIC, EHPT20X-MHEDW

Note: Its serial number is on the nameplate of the product.
Hinweis: Die Seriennummer befindet sich auf dem Kennschild des Produkts. Remarque : Le num�ro de s�rie de l'appareil se trouve sur la plaque du produit.
Opmerking: het serienummer staat op het naamplaatje van het product.
Nota: El n�mero de serie se encuentra en la placa que contiene el nombre del producto.
Nota: il numero di serie si trova sulla targhetta del prodotto.
: . Nota: o n�mero de s�rie encontra-se na placa que cont�m o nome do produto.
Bem�rk: Serienummeret st�r p� produktets fabriksskilt.
Obs: Serienumret finns p� produktens namnpl�t. : . Uwaga: Numer seryjny znajduje si na tabliczce znamionowej produktu.

Directives Richtlinien Directives Richtlijnen Directivas Direttive

Directivas
Direktiver
Direktiv
Dyrektywy

2014/35/EU: Low Voltage 2006/42/EC: Machinery 2014/30/EU: Electromagnetic Compatibility 2009/125/EC: Energy-related Products Directive and Regulation (EU) No 813/2013 2011/65/EU, (EU) 2015/863 and (EU) 2017/2102: RoHS Directive

Merk: Serienummeret befinner seg p� navneplaten til produktet. Huomautus: Sarjanumero on merkitty laitteen arvokilpeen.
Pozn�mka: P�slusn� s�riov� c�slo se nach�z� na st�tku produktu. Pozn�mka: V�robn� c�slo sa nach�dza na typovom st�tku v�robku. Megjegyz�s: A sorozatsz�m a term�k adatt�bl�j�n tal�lhat�. Opomba: serijska stevilka je zapisana na tipski ploscici enote. Not: Numrul de serie este specificat pe plcua indicatoare a produsului. M�rkus. Seerianumber asub toote andmesildil.
Piezme. Srijas numurs ir nordts uz ierces datu plksntes. Pastaba. Serijos numeris nurodytas gaminio vardini duomen lentelje. Napomena: serijski broj nalazi se na natpisnoj plocici proizvoda. Napomena: Serijski broj nalazi se na nazivnoj plocici proizvoda.

Direktiver
Direktiivit
Smrnice Smernice
Ir�nyelvek Direktive

Directive Direktiivid Direktvas Direktyvos Direktive Direktive

Issued UNITED KINGDOM

1 August 2020

Atsushi EDAYOSHI Manager, Quality Assurance Department

Please be sure to put the contact address/telephone number on this manual before handing it to the customer.

RG79F364L04

HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Printed in the UNITED KINGDOM